Question

The equation y = ax describes the graph of a line. If the value of a is positive, the line:

A. goes up and to the right.
B. is horizontal.
C. is vertical.
D. goes down and to the right.

Answer 1

A. goes up and to the right

Explanation:

Answer 2

If the value a is positive in the linear equation y = a x ( for example: y = 2 x ) then the line ( from the left to the right ) must go up and to the right. It also passes through the origin ( 0, 0 ). For x = 1: y = 2 * 1 = 2, so that point is ( 1, 2 ), x2 > x1, and y2 > y1.Answer:A. goes up and to the right.