Question

select the correct answer. find the value of h(-7) for the function below. h(x) = 5.7 -19x a. 138.7 b. 0.67 c. -138.7 d. -127.3

Explanation:

Step1: Substitute \( x = -7 \) into \( h(x) \)

We have the function \( h(x) = 5.7 - 19x \). To find \( h(-7) \), we substitute \( x = -7 \) into the function. So we get \( h(-7)=5.7 - 19\times(-7) \).

Step2: Calculate the multiplication part

First, calculate \( - 19\times(-7) \). According to the rule of multiplying two negative numbers, the result is positive. So \( -19\times(-7)=133 \).

Step3: Calculate the final result

Now we have \( h(-7)=5.7 + 133 \) (because \( -19\times(-7) = 133 \)). Then \( 5.7+133 = 138.7 \).

Answer:

A. 138.7