SAT Math Practice Question #11946 - SATify | SATify

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SAT Math Practice Question #11946 - SATify | SATify

#11946

linear equations

systems

hard

30 sec

In the system of equations above, $a$ is a constant. If the system of equations has no solution, what is the value of $a$ ?
$y = - \frac{1}{2} x + 10$
$y = a x - 1$

A.

$\frac{1}{2}$

B.

$0$

C.

$- \frac{1}{2}$

D.

$- 10$