Find and simplify f ( a + 8 ) f ( a + 8 ) f ( a + 8 ) for the function f ( x ) = 12 x − 7 f ( x ) = 12 x - 7 f ( x ) = 12 x − 7 .A) f ( a + 8 ) = 12 a + 48 f ( a + 8 ) = 12 a + 48 f ( a + 8 ) = 12 a + 48 B) f ( a + 8 ) = 89 f ( a + 8 ) = 89 f ( a + 8 ) = 89 C) f ( a + 8 ) = 12 a + 103 f ( a + 8 ) = 12 a + 103 f ( a + 8 ) = 12 a + 103 D) f ( a + 8 ) = 12 a + 89 f ( a + 8 ) = 12 a + 89 f ( a + 8 ) = 12 a + 89 E) f ( a + 8 ) = 12 a + 13 f ( a + 8 ) = 12 a + 13 f ( a + 8 ) = 12 a + 13

Question

Find and simplify   f ( a + 8 )  f ( a + 8 )  f ( a + 8 )    for the function   f ( x )  = 12 x − 7 f ( x )  = 12 x - 7 f ( x )  = 12 x − 7   .A)    f ( a + 8 )  = 12 a + 48 f ( a + 8 )  = 12 a + 48 f ( a + 8 )  = 12 a + 48 B)    f ( a + 8 )  = 89 f ( a + 8 )  = 89 f ( a + 8 )  = 89 C)    f ( a + 8 )  = 12 a + 103 f ( a + 8 )  = 12 a + 103 f ( a + 8 )  = 12 a + 103 D)    f ( a + 8 )  = 12 a + 89 f ( a + 8 )  = 12 a + 89 f ( a + 8 )  = 12 a + 89 E)    f ( a + 8 )  = 12 a + 13 f ( a + 8 )  = 12 a + 13 f ( a + 8 )  = 12 a + 13

Marwa Hajay · Accepted Answer

Final Answer : D, Explanation :   We substitute   x = a + 8 x = a + 8 x = a + 8   into the function equation: f ( a + 8 ) = 12 ( a + 8 ) − 7 = 12 a + 96 − 7 = 12 a + 89. f(a+8) = 12(a+8) - 7 = 12a + 96 - 7 = 12a + 89. f ( a + 8 ) = 12 ( a + 8 ) − 7 = 12 a + 96 − 7 = 12 a + 89. Therefore, the answer is choice D.

Find and simplify $f (a + 8)$ for the function $f (x) = 12 x - 7$ .

A) $f (a + 8) = 12 a + 48$
B) $f (a + 8) = 89$
C) $f (a + 8) = 12 a + 103$
D) $f (a + 8) = 12 a + 89$
E) $f (a + 8) = 12 a + 13$

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