Which lines are perpendicular to 5x + 4y = 8?
Choose all answers that are correct.
A. –5x + 4y = –5
B.5y = –4x – 15
C.5y = 4x + 5
D.–4x + 5y = 10
Stacey Warren - Expert brainly.com
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our first step is to convert each equation into y = mx + b form, do you know how to do that?
YES, is one of the answers A?
hm, I don't think A is one of the answers, let's walk it through step by step
let's start with the original equation
5x + 4y = 8
we can re-arrange this to get
4y = -5x + 8
y = (-5/4)x + 2
the slope of the original equation is (-5/4), so any line that is perpendicular will have a slope of (4/5)
check each of the four answer choices to see which one(s) have a slope of 4/5