ACT-TU-D18: Which line is perpendicular to y = 2x + 1?

· 5/5/2026, 3:22:28 PM

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ACT-TU-D18: Which line is perpendicular to y = 2x + 1?

A.y = −0.5x + 4
B.y = −2x + 1
C.y = 0.5x + 4
D.y = 2x − 1

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· 4/5/2026, 5:00:41 PM
Could you share what materials you used?
· 4/2/2026, 1:09:15 PM
Honestly the AAMC materials made the biggest difference for me.