SAT Math Practice Question #32531 - SATify | SATify

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SAT Math Practice Question #32531 - SATify | SATify

#32531

functions

linear

easy

60 sec

For the linear function $f$ , the graph of $y = f (x)$ in the $x y$ -plane passes through the points $(2, 5)$ and $(4, 9)$ . Which equation defines $f$ ?

A.

$f (x) = 2 x + 1$

B.

$f (x) = 2 x - 1$

C.

$f (x) = \frac{1}{2} x + 4$

D.

$f (x) = \frac{1}{2} x + 3$