Question

Question
Use the image to answer the question.



The proportional relationship is shown on the graph. Derive the equation of the line y=mx
through the origin.

(1 point)
Responses

y=12x
y is equal to 1 half x

y=2x
y is equal to 2 x

y=8x
y is equal to 8 x

y=4x

Answer 1

y = 2x

Reason: pick two points on the line (for example (0,0) and (1,2)). Slope m = rise/run = (2−0)/(1−0) = 2, so the equation through the origin is y = 2x.