Which of the points shown below are on the line given by the equation y = 2x? check all that apply. a. point a: (1, -1) b. point b: (1, 3) c. point c: (-2, -4) d. point d: (-2, 4)

Substitute each value of x, calculate, and if the answer equals to the given value of y, then the point does lie on y = 2x

Point A (1, -1) 

y = 2(1)
y = 1

The answer is not y = -1 as given in the question, hence point A does not lie on y = 2x



Point B (1, 3)

y = 2(1)
y = 2

The answer is not y = 3 as required, hence point B does not lie on y = 2x


Point C(-2, -4)

y = 2(-2)
y = -4

The answer is y = -4 as required. Hence, point C does lie on y = 2x


Point D(-2, 4)

y = 2(-2)
y = -4

The answer is not y = 4 as required, so point D does not lie on y = 2x.


Correct C

I’m pretty sure the slope would be 1 since the x and y values increase by 1