Solve the problem.
-If $a$ is $b$ plus nine, and $c$ is the square of $a$, write $c$ as a function of $b$.
A) $c ( b ) = ( b + 9 ) ^ { 2 }$
B) $c ( b ) = b + 81$
C) $c ( b ) = 2 b + 18$
D) $c ( b ) = b ^ { 2 } + 81$

Question

Quizplus · Accepted Answer

Given $a = b + 9$, and $c = a^2$, substituting the expression for $a$ into $c$ gives $c = (b + 9)^2$, which matches choice A.

Solve the Problem aaa Is bbb Plus Nine, And ccc Is the Square Of

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