How does a reflection across the y-axis change the coordinates of a shape?

Answer:

the answer is 4

Step-by-step explanation:

2+2=4

Answer:

22/3

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

all of the others are lower than 0

Answer:

The slope is equal to [tex]\frac{2}{3}[/tex] . So the right answer is A.

Step-by-step explanation:

We know that if we are given to points of a function we can find out its slope by using the following formula....

[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Where m is the slope,  [tex]x_{1}[/tex] and [tex]y_{1}[/tex] are the coordinates of the first point, [tex]x_{2}[/tex] and [tex]y_{2}[/tex] are coordinates of the second point.

Let (-4, 2) be [tex](x_{1} , y_{1})[/tex]

Let (-16, - 6) be [tex](x_{2}, y_{2} )[/tex]

then......

The slope of the line will be [tex]\frac{2}{3}[/tex] i.e. option A is the correct answer.

Slope is or gradient of a line is a number that describes both the direction and the steepness of the line.

Slope [tex](m) =\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

We have,

Points (-4, 2) and (-16, -6)

i.e.

x₁ = -4,  x₂ = -16,

And,

y₁ = 2,   y₂ = -6

Now,

Using the above mentioned formula,

Slope [tex](m) =\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]    

i.e.

Slope [tex](m) =\frac{-6-2}{-16-(-4)}[/tex]

On solving we get,

Slope [tex](m) =\frac{-8}{-12}=\frac{2}{3}[/tex]

So, the slope pf the given points is  [tex]\frac{2}{3}[/tex] .

Hence, we can say that the slope of the line will be [tex]\frac{2}{3}[/tex] i.e. option A is the correct answer.

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Answer:

As a percent: 115%

As a decimal: 1.15

As a fraction: [tex]\frac{23}{20}[/tex]

Step-by-step explanation:

Percentages

Suppose Michael spends some amount of money on food, and that money is set at 100%. He leaves a 15% tip for the waitress.

Thus, he is really paying 100%+15% = 115% of the original price.

To express a percentage as a decimal, we just divide by 100:

115% = 115/100 = 1.15

The same division should be simplified instead of operated to express the percentage as a fraction:

115% = [tex]\frac{115}{100}[/tex]

Simplifying by 5:

115% = [tex]\frac{23}{20}[/tex]

Summarizing:

As a percent: 115%

As a decimal: 1.15

As a fraction: [tex]\frac{23}{20}[/tex]

Answer:

answer is c

Step-by-step explanation

answer is c

Answer:

C is the answer

Brainliest are appreciated :DDD

Answer:

D

Step-by-step explanation:

f(x)=/x+0.5/

I hope it helps

here is your answer pls check the answer hope u can understand

Answer: It will take 12 hours for the price of the jacket to decrease by $18

Step-by-step explanation: All you got to do for this problem is 18 divided by 1.50 to get $12.

Answer:

625 ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

Answer:

The value of x = 1

Step-by-step explanation:

Given

To determine

x = ?

Using the trigonometric ratio

cos Ф = adjacent / hypotenuse

here

Ф = 45°

adjacent of 45° = x

hypotenuse = √2

so substituting Ф = 45°  adjacent = x and hypotenuse = √2  in the equation

cos Ф = adjacent / hypotenuse

[tex]\cos \left(45^{\circ \:}\right)=\frac{x}{\sqrt{2}}[/tex]

switch sides

[tex]\frac{x}{\sqrt{2}}=\cos \left(45^{\circ \:}\right)[/tex]

Multiply both sides by 2

[tex]\frac{2x}{\sqrt{2}}=2\cos \left(45^{\circ \:}\right)[/tex]

[tex]\sqrt{2}x=\sqrt{2}[/tex]             ∵  [tex]\cos \left(45^{\circ \:}\right)=\frac{\sqrt{2}}{2}[/tex]

Divide both sides by √2

[tex]\frac{\sqrt{2}x}{\sqrt{2}}=\frac{\sqrt{2}}{\sqrt{2}}[/tex]

[tex]x=1[/tex]

Therefore, the value of x = 1

Answer:

2, rise over run. 2/1 =2.

Answer:

0.5

Step-by-step explanation:

Given points (7,-1) and (9,0), m = 1/2 = 0.5.

Answer:

(y2-y1)/x2-x1

(0+1)/(9-7)=1/3

Step-by-step explanation:

Answer:

A coefficient is a number in front of a variable. For example, in the expression x 2-10x+25, the coefficient of the x 2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.

Step-by-step explanation:

- the type of pair is vertical angle.

- to find x:

-- vertical angles are equal.

4x + 10 = 5x - 1

10 = x - 1

x = 11

Answer:

x=100°

Step-by-step explanation:

x+80°=180°( straight angle)

x=180°-80°

x=100°

hope it helps.

Answer:

y = 1/5x

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

the y intercept is at 2

Answer: $13.44

Step-by-step explanation:

Inflation is causing the manufactured goods to rise at 2.3% per year. The price in 5 years can be calculated using compound interest formula:

= 12 * ( 1 + 2.3%)⁵

= ‭13.444956907696116‬

= $13.44

Given:

The vertices of a triangle are P(4,1), Q(2,-8), and R(-8,1).

To find:

The vertices of the image reflected across the y-axis.

Solution:

The vertices of a triangle are P(4,1), Q(2,-8), and R(-8,1). It is reflected across the y-axis.

If a figure is reflected across the y-axis, then

[tex](x,y)\to (-x,y)[/tex]

Using this rule, we get

[tex]P(4,1)\to P_1(-4,1)[/tex]

[tex]Q(2,-8)\to Q_1(-2,-8)[/tex]

[tex]R(-8,1)\to R_1(8,1)[/tex]

So, the vertices of the image are [tex]P_1(-4,1), Q_1(-2,-8), R_1(8,1)[/tex].

Therefore, the correct option is B.

Note: Options are not in proper form.

Answer:

P'(–4, 1), Q'(–2, –8), and R'(8, 1)

Step-by-step explanation:

Answer:

i cant help much.

Step-by-step explanation:

To find the area of the circle you do π (pie) x radius squared.

Answer:

$240

Step-by-step explanation:

there are 6 sets of 2 $20's which make $40, so you'd multiply 40 by 6 them you'd get $240

Answer: x < 79/38

Step-by-step explanation:

Answer:

x<79/38

Step-by-step explanation:

Answer:

Here we can not see the options, so i will find the graph by the equation alone.

We start with:

Ix - 1I < 4

We could rewrite this as:

-4 < (x - 1) < 4

Now we can add 1 in the 3 parts, to get:

-4 + 1 < x - 1 + 1 <  4 + 1

-3 < x < 5

This means that the graph will be such that:

x >  -3   (this is a dashed line at x = 3, and we shade the part in the right of that line)

and:

x < 5   (this is a dashed line at x = 5, and we shade the part in the left of that line)

The graph would look something like the one below

(If the graphs are only in one axis, you should see a white dot at x = -3, than a colour line that goes to the right until the point x = 5, where we have another white dot)

Answer:

the slope is 1

you find two points that are directly on an intersection of the grid. and then count rise/run

rise is going up and down and run is left and right

start at the point you found furthest to the left and count to the next point that's to the right.

if you have to go down to find it or left to find it, the slope is negative

in this case. theres a point at (-1,0) and (0,1)

you have to count up one and right one, making the slope 1/1 or simplified to 1

Step-by-step explanation:

I hope this helps :)

Answer:

correct do

Step-by-step explanation:

Answer:

1; 12.75

2; 47.8 or 47.3

Step-by-step explanation:

52× .25 is 13 then you subtract .25 from 13

and

94.60× .5 is 47.3 then you add the tax, 47.3+ .5 is 47.8.

Answer:

1; 12.75

2; 47.8 or 47.3

Step-by-step explanation: