If x = -2, then x 2 - 7x + 10 equals a) 0 b) 20 c) 28

OPTION C

Step-by-step explanation:

Given the quadratic equation and the value of the variable "x" , you need to substitute the given value of the variable. Then:

And finally, you need to evaluate.

Remember the multiplication of signs:

Therefore, you get the following result:

This matches with the option C.

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)