Graphing Quadratics with Intercepts
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Objective
I can graph a quadratic function by finding and plotting the x- and y-intercepts.
Part 1 of 4
Warm-up video
Kayla Jones · 3:05
We don't generate video — this one is by Kayla Jones on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
To find the y-intercept of the quadratic equation, we plug in 0 for x and solve for y.
- 2
To find the x-intercepts, we plug in 0 for y, then factor the quadratic equation and use the zero product property.
- 3
After finding the x- and y-intercepts, we plot the points and draw a U-shaped graph to represent the quadratic function.
Part 3 of 4
Practice
11 questions
What value do you substitute for 'x' to find the y-intercept of a quadratic equation?
What value do you substitute for 'y' to find the x-intercept(s) of a quadratic equation?
Part 4 of 4
Exit ticket
Quick comprehension check
“Given the quadratic equation y = x² + 4x + 3, find the x-intercepts and the y-intercept. Show your work.”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
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