Quadratic function in general form: y = ax^2 + bx + c
What You'll Learn
Identify y-intercepts by evaluating the constant term in general form
Calculate x-intercepts by setting y to zero and factoring the quadratic equation
Determine the vertex by finding the midpoint of x-intercepts and substituting back
Sketch accurate parabola graphs using intercepts and vertex coordinates
Verify parabola direction by analyzing the sign of the leading coefficient
What You'll Practice
1
Finding y-intercepts from quadratic equations in general form
2
Solving for x-intercepts by factoring trinomials
3
Calculating vertex coordinates using x-intercepts and substitution
4
Graphing complete parabolas from intercepts and vertices
Why This Matters
Mastering quadratic functions in general form prepares you for advanced algebra, physics, and calculus. Graphing parabolas is essential for modeling real-world scenarios like projectile motion, profit maximization, and engineering design problems you'll encounter throughout STEM courses.