Question

Y=1/2x Y= 4x Y= 1/4 x Y= 2 x

Answer 1

It's a line in form y = mx.

Two points:

(0, 0) and (1, 4)

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{1-0}{4-0}=\dfrac{1}{4}$

Answer: $y=\dfrac{1}{4}x$