The line slants sharply up from left to right.

The line passes through the following points:

(0 comma 5)

(1 comma 9)

Question

Line $j$ is shown in the xy-plane. Line $k$ (not shown) is parallel to line $j$ . What is the slope of line $k$ ?

Accepted Answer

The correct answer is 4 . It's given that line k is parallel to line j . It follows that the slope of line k is equal to the slope of line j . Given two points on a line in the xy -plane, x 1 , y 1 and x 2 , y 2 , the slope of the line can be calculated as y 2 - y 1 x 2 - x 1 . In the xy -plane shown, the points 0 , 5 and 1 , 9 are on line j . It follows that the slope of line j is 9 - 5 1 - 0 , or 4 . Since the slope of line j is equal to the slope of line k , the slope of line k is also 4 .

Question d57fb5