Question

Carey correctly graphs a linear function. The slope of the function is –1. The y-intercept is 3. Which is Carey’s graph?
On a coordinate plane, a line goes through points (0, 3) and (3, 0).
On a coordinate plane, a line goes through points (negative 3, 0) and (0, 3).
On a coordinate plane, a line goes through points (0, negative 1) and (1, 2).
On a coordinate plane, a line goes through points (negative 1, 2) and (0, negative 1).

Answer 1

The first graph. It has points (0,3) and (3,0); slope = (0 − 3)/(3 − 0) = −3/3 = −1 and the y-intercept is (0,3), so it matches slope −1 and y-intercept 3.