SAT Math Practice Question #38997 - SATify | SATify

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SAT Math Practice Question #38997 - SATify | SATify

#38997

equations

slopes

lines

coordinate geometry

geometry

algebra

medium

45 sec

Calculator OK

In the $x y$ -plane, line $A$ has the equation $4 x + 2 y = 10$ . Line $B$ is perpendicular to line $A$ . What is the slope of line $B$ ?

A.

$- 2$

B.

$- \frac{1}{2}$

C.

$\frac{1}{2}$

D.

$2$