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scoundrel [369]

3 years ago

10

After a dilation with a center of (0, 0), a point was mapped as (4, –6) → (12, y). A student determined y to be –2. Evaluate the

student's answer

1 answer:

crimeas [40]3 years ago

8 0

That would not be right because 4 times 3 equals 12 and -6 times 3 equals -18.

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Which equation represents a line that passes through (-2, 4) and has a slope of 1/2?

jok3333 [9.3K]

Answer:

$\large\boxed{y-4=\dfrac{1}{2}(x+2)\text{- point-slope form}}\\\boxed{y=\dfrac{1}{2}x+5\text{- slope-intercept form}}$

Step-by-step explanation:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

We have the slope $m=\dfrac{1}{2}$ and the point $(-2, 4)$ .

Substitute:

$y-4=\dfrac{1}{2}(x-(-2))$

$y-4=\dfrac{1}{2}(x+2)$ - point-slope form

Convert to the slope-intercept form (y = mx + b):

$y-4=\dfrac{1}{2}(x+2)$ <em> use the distributive property</em>

$y-4=\dfrac{1}{2}x+1$ <em>add 4 to both sides</em>

$y=\dfrac{1}{2}x+5$ - slope-intercept form

3 0

2 years ago

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konstantin123 [22]

Her total pay that week was $660

5 0

2 years ago

Which of the following is in Integrity but not a whole number A -9.6 B -4

abruzzese [7]

Answer:

B. -4.

Step-by-step explanation:

3 0

2 years ago

It takes one super giant pizza to feed three people if you invite 36 people how many peaches will you need

denis23 [38]

$\bf \begin{array}{ccll}
\stackrel{super~duper}{pizza}&folks\\
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8 0

3 years ago

If you can help with any of these two or both that would be great ! :) <br> thanks

Vladimir [108]

Answer:

hmmm not sure

Step-by-step explanation:

try mulitply the numbers

7 0

2 years ago