Math 100 - Exam 3 2024
1. Slope Intercept formula y = mx + b
m = slope b =
y-intercept
Use THIS formula when you are given the y-
intercept (0,b)
Need two items = slope and a point
2. Point Slope formula y - y1 = m(x - x1)
Use THIS formula when you are not given the
y-intercept.
Don't plug in for x and y values
3. How do you know an exponents = 1 equation
is linear? variables = two (x and y)
4. How do you find the rise
slope? ______
run
y2 - y1
___________
x2 - x1
1/4
1. Slope Intercept formula y = mx + b
m = slope b =
y-intercept
Use THIS formula when you are given the y-
intercept (0,b)
Need two items = slope and a point
2. Point Slope formula y - y1 = m(x - x1)
Use THIS formula when you are not given the
y-intercept.
Don't plug in for x and y values
3. How do you know an exponents = 1 equation
is linear? variables = two (x and y)
4. How do you find the rise
slope? ______
run
y2 - y1
___________
x2 - x1
1/4