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crimeas [40]
2 years ago
8

What is the value of h(-7)? h(x) = [3x] - 1 A. 22 B. -20 C. -22 D. 20

Mathematics
2 answers:
Vaselesa [24]2 years ago
6 0

For this case we have to find the value ofh (x)when x = -7, for this we must replace the value of x = -7 in the given equation. We have:

h (x) = | 3x | - 1

Substituting x = -7

h (-7) = | 3 (-7) | - 1

Considering what + * - = -

h (-7) = | -21 | -1

Taking into account that by definition; | -a | = a

h (-7) = 21-1\\h (-7) = 20

So, h (-7) = 20

Answer:

Option D


Eddi Din [679]2 years ago
3 0

substitute -7 in for x

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

     = -21-1

      = -22

Choice C

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