Question

17 What are the x-intercept to the function f(x)=2x-31+2 ?

A {0}
B{-5/2,5/2}. C{ } D{-5/2,-1/2}

Answer 1

See below

Explanation:

It seems to be a typo.

`f(x)=2x-31+2`

`f(x)=2x-29`

The x-intercept is when the function is equal to zero. Once the function is linear, there will be one x-intercept.

`0=2x-29`

`x=(29)/(2)`

Once there are alternatives with two values, your function is probably a quadratic function.

`f(x)=2x^2-31x+2`, but the roots are not in the alternatives.