3. Bahm’s EIGHT Steps to Graphing Quadratic Equations (y = ax2 + bx + c) like a CHAMPION!
Find the axis of symmetry (x = -b/2a)
Substitute your x value into your original equation to get a y-value
Put x and y together to get your vertex coordinates
Find the Domain (ALL REAL NUMBERS)
Find the Range (look at your y-value in the vertex)
y ≥ when you have a positive “a”
y ≤ when you have a negative “a”
Find the y-intercept (look at “c” in your equation
Find the increasing interval (look at x-value in the vertex coordinates)
> when a is positive
< when a is negative
Find the decreasing interval (look at x-value in the vertex)
< when a is positive
> when a is negative

12. Bahm’s EIGHT Steps to Graphing Quadratic Equations (y = ax2 + bx + c) like a CHAMPION!
Find the axis of symmetry (x = -b/2a)
Substitute your x value into your original equation to get a y-value
Put x and y together to get your vertex coordinates
Find the Domain (ALL REAL NUMBERS)
Find the Range (look at your y-value in the vertex)
y ≥ when you have a positive “a”
y ≤ when you have a negative “a”
Find the y-intercept (look at “c” in your equation
Find the increasing interval (look at x-value in the vertex coordinates)
> when a is positive
< when a is negative
Find the decreasing interval (look at x-value in the vertex)
< when a is positive
> when a is negative