Functions and Quadratic Equations?

Question

Solve x^2 + 7x - 7 = 0

Find the x-intercepts of f(x) = x^2 +7x - 7

Answer 1

x = [-7 + sqrt(77)]/2 and [-7 - sqrt(77)]/2

Use the quadratic formula (google it if you're unsure what it is) to solve for x.


The x-intercepts are the places on the graph where y = 0, which are actually the x values above.