SAT Math Practice Question #30393 - SATify | SATify

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SAT Math Practice Question #30393 - SATify | SATify

#30393

linear

coordinate geometry

medium

60 sec

Calculator OK

Line $A$ passes through the points $(0, 0)$ and $(4, 8)$ . Line $B$ is perpendicular to line $A$ in the $x y$ -plane. What is the slope of line $B$ ?

A.

$- 2$

B.

$- \frac{1}{2}$

C.

$\frac{1}{2}$

D.

2