Question

Heather was asked to graph 3x - y = -4 by using slope and y-intercept. Her graph is shown.

Which choice supports the graph that she has drawn?
A) The slope is positive 3 and the y-intercept is (0,4).
B) The slope is negative 3 and the y-intercept is (0,4).
C) The slope is positive 3 and the y-intercept is (0,-4).
D) The slope is negative 3 and the y-intercept is (0,-4).

Answer 1

A. If you subtract -3x from both sides, you get -y=-3x-4 and then everything has to be subtracted by -1 so you get y=3x+4