x, y intercepts and parabola: Find the intercepts for .

We can use the definition of the x-intercept: let y = 0 and solve:

, or

Similarly for the y-intercept: let x = 0 and solve:

, or

Test Problem: Find the intercepts for

a) x = -2 or 4, y = 9

b) x = -3 or 3, y = 8

c) x = -2 or 4, y = 8

d) x = -3 or 3, y = 9