MFM2P
Date: _______________________
Slope and y-Intercept ( y = mx + b ) – Practice
1. Determine the slope and y-intercept for each of the
following equations. Use the information to quickly
graph each line on the same xy-plane.
a) y = 4 x − 5
m: ________
y-int: ________
b) y = − x + 6
m: ________
y-int: ________
c) y = 2 x
m: ________
y-int: ________
d) y = − x − 2 m: ________
y-int: ________
1
2
2. Change equation into y = mx + b form and state its slope and y-intercept.
a) x + y − 3 = 0
b) x − y = 0
c) 8 x − 2 y + 10 = 0
d) −2 x + 5 y − 15 = 0
3. Write the equation of each line in y = mx + b form using the information given.
a) Slope = 7 and y-intercept = 9
Equation: ______________________
b) m = -3 and b = 3
Equation: ______________________
c) m = 0 and b = -3
Equation: ______________________
7
d) m = and b = 0
2
Equation: ______________________
4. Use the graph to help you find the information needed to
determine the equation of the line shown.
slope: ______________
y-intercept: _____________
equation: __________________