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SAT Math Practice Question #7491 - SATify | SATify

#7491

algebra

functions

word problem

expressions

modeling

area

geometry

squares

perimeter

medium

75 sec

Square P has a side length of $x$ inches. Square Q has an area that is $60 x + 900$ square inches greater than the area of square P. The function $f$ gives the area of square Q, in square inches. Which of the following defines $f$ ?

A.

$f (x) = (x + 30)^{2}$

B.

$f (x) = (x + 60)^{2}$

C.

$f (x) = (x + 900)^{2}$

D.

$f (x) = (x + 30)^{2} + x^{2}$