4 classes, $52
Do it the long way to check
<span> –8 • (4 + 3) = –8 • 4 + –8 • 3
answer
</span><span>• Distributive Property</span>
Parallel slope = 2
This is because the original line has slope 2. Parallel lines have equal slopes.
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Perpendicular slope = -1/2
The original slope 2 or 2/1 turns into -1/2 after flipping the fraction and the sign. Note the original slope and perpendicular slope multiply to -1. This is true for any pair of perpendicular lines where neither line is vertical.
Answer:
$23.31
Step-by-step explanation:
$21 x 1.11 = $23.31
