cc33

Choose the slope-intercept equation of the line that passes through the point (-5, -1) and is perpendicular to y = 5/2x + 2.
A. y = 2/5x + 1
B. y = -5/2x -27/2
C. y = -2/5x - 3
D. y = 5/2x + 23/2

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zordoloom

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What is the slope of this line: y = 5/2x + 2?

cc33

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idk

cc33

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is it like the same thing we did last time?

zordoloom

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no

cc33

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oh. i forgot how to do this then

zordoloom

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have you seen this equation before: y=mx+b?

cc33

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yes

zordoloom

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m is the slope is
If you look at the equation y = 5/2x + 2, can you see how it's the same format?

cc33

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oh yeah

zordoloom

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So if you compare it to the format of y=mx+b, and if "m" represents the slope, can you find the slope of y = 5/2x + 2?

cc33

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so is the answer D?

zordoloom

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no

zordoloom

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But you are close.

zordoloom

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The question asked for a perpendicular line to y = 5/2x + 2

zordoloom

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That means that it will be negative inverse

zordoloom

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so it will look like -2/5

cc33

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ohhhhh okay

cc33

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so its B

zordoloom

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no

zordoloom

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It's C

cc33

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oh thank you. Im really thankful of you helping me. :)

zordoloom

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yep!