What is the slope-intercept form for each equation in this system? compare the slopes and y-intercepts to describe the graph of the system.
3x - 4y = 28
4x + 10y = 20
a) y =
3
4
x − 7; y =
−2
5
x + 2; one line
b) y = -
3
4
x − 7; y =
−2
5
x + 2; parallel lines
c) y =
3
4
x − 7; y =
2
5
x + 2; intersecting lines
d) y =
3
4
x − 7; y =
−2
5
x + 2; intersecting