Math 1 EOC Review - Quadratic Functions

Put it in Desmos and try out your choices as your value for c. Which choice creates a graph that crosses the x-axis at -3?

• -12

• 6

• 0

• None of these

Calculator inactive!

I would multiply each of the choices and see which one creates the original polynomial.

Desmos!

Put each choice in Desmos and see which quadratic crosses the x-axis at 5 and -7.

Desmos!

Put each side of the equation in Desmos (y=left side, y=right side). Find where they intersect. You are looking for the x-values.

Multiply each answer choice. See which one is the same as your original expression OR put the original expression in Desmos and see if which choice matches the original.

What is the biggest number and exponents that can be divided out of this expression. Use your choices to narrow it down.

Desmos!

Graph the original function in Desmos. Then graph each choice. Which graph moves three units to the right?

Desmos!

Graph in Desmos and compare to your choices. Where does the graph cross the x-axis? Those are your zeros!

• The zeros are -3 and 5

• The zeros are -5 and 3

• The zeros are -5 and -3

• The zeros are 3 and 5

Desmos!

Based on the zeros, which best represents the graphed function?

We don't know the quadratic formula (yet...).

Put it in Desmos and see where the parabola crosses the x-axis! You've got this!