7. Write a linear equation y = mx + b for the following information: m= 1, b = 4
a) y = 4x + 1
b) y = -1x + 4
c) y = x - 4
d) y = x +4
8. Write a linear equation y = mx + b for the following information: (1,-5) and (-3,7)
a) y = -3x - 2
b) y = -3 - 2
c) y = 1/3x + 3/3
d) y = 1/3x + 16/3