how do I find the x & y intercept of f(x)= x^2-7x-18

To find the x intercepts, solve when f(x) = 0

0 = x^2 - 7x - 18

To find the y intercept, solve when x = 0.

f(x) = 0^2 - 7(0) - 18

Post what you get! :)