SAT Math Practice Question #10875 - SATify | SATify

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SAT Math Practice Question #10875 - SATify | SATify

#10875

coordinate geometry

slopes

easy

20 sec

Line $a$ is defined by $y = - 4 x + 1$ . Line $b$ is perpendicular to line $a$ in the $x y$ -plane. What is the slope of line $b$ ?

A.

$4$

B.

$\frac{1}{4}$

C.

$- \frac{1}{4}$

D.

$- 4$