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Scorpion4ik [409]

2 years ago

11

What are the coordinates of the image of vertex C after a dilation with center (0, 0) and scale factor 2? A. C’(3, 4) B. C’(4, 6

) C. C’(6, 2) D. C’(6, 4)

1 answer:

saveliy_v [14]2 years ago

5 0

Answer:

I think it is answer A

Step-by-step explanation:

i don't know

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2 years ago

Complete the point slope equation of the line through (-5, 7) and (-4, 0).

IgorLugansk [536]

For this case we have that by definition, the point-slope equation of a line is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

We have two points:

$(x_ {1}, y_ {1}): (- 5,7)\\(x_ {2}, y_ {2}): (- 4,0)$

We found the slope:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {0-7} {- 4 - (- 5)} = \frac {-7} {-4 + 5} = \frac {-7} {1} = - 7$

Thus, the equation is of the form:

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We substitute one of the points and find "b":

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Finally, the equation is:

$y = -7x-28$

Answer:

$y = -7x-28$

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3 years ago