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Mathematics 7 Online
OpenStudy (anonymous):

8. Which of the following equations is parallel to the line passing through A(-2,7), B(-2,-2)? (1 point) a. y= -2 b. y=x c. 3x=5 d. -2x = 7y

OpenStudy (jdoe0001):

hmm what slope do you get for those 2 points?

OpenStudy (anonymous):

let me check

OpenStudy (anonymous):

6/0?

OpenStudy (anonymous):

sorry i was drawing a graph

OpenStudy (jdoe0001):

\(\begin{array}{lllll} &x_1&y_1&x_2&y_2\\ &(-2\quad ,&7)\quad &(-2\quad ,&-2) \end{array}\\ \quad \\ \cfrac{rise}{run} \implies \cfrac{-2-(7)}{-2-(-2)}\implies \cfrac{-9}{0}\)

OpenStudy (jdoe0001):

notice the "x" is -2 and -2, so the graph is like |dw:1383335886815:dw|

OpenStudy (anonymous):

i forgot about calculating slope like that.

OpenStudy (jdoe0001):

I don't see anything resembling a "vertical line" equation in your choices y = -2 is a horizontal line|dw:1383336001625:dw|

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