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Montano1993 [528]
3 years ago
11

Solve.      z-5 ________= -1       7 z=_____

Mathematics
2 answers:
Serhud [2]3 years ago
7 0
(z - 5)/7= -1
z - 5= -1×7
z - 5= -7
z = -7 + 5
z = -2
ruslelena [56]3 years ago
3 0
The answer is -2 because -2-5= -7 so -7/7 equals -1
if any questions just ask:)
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So perpendicular lines have <u>slopes that are negative reciprocals</u> to each other, but firstly we need to find the slope of the original equation. The easiest method to find it is to convert this standard form into slope-intercept.

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Now looking at this equation, we see that the slope is 3/4. Now since our new line is perpendicular, this means that <em>its slope is -4/3.</em>

Now that we have the slope, plug that into the m variable and plug in (-4,-5) into the x and y coordinates to solve for the b variable as such:

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<u>In short, your new equation is y = -4/3x - 10 1/3.</u>

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