Question

What is the smaller and larger x value of the x-intercept for y=x2-5

Answer 1

Smaller:
`(-√(5),0)` larger:
`(√(5) ,0)`

Explanation:

y=0 because it is at the x-intercept, solve for x.

`y=x^2-5\\0=x^2-5\\0+5=x^2-5+5\\x^2=5\\\\x=(+/-)√(5)\\y=0\\\\(x,y)=(-√(5),0) or(√(5), 0)`