What is the value of h(-7)? h(x) = [3x] - 1 a. 22 b. -20 c. -22 d. 20

substitute -7 in for x

f(-7) = (3*-7) -1

     = -21-1

      = -22

Choice C

For this case we have to find the value ofwhen , for this we must replace the value of in the given equation. We have:

Substituting

Considering what

Taking into account that by definition;

So,

Option D

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

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