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Write the equation of one line that is perpendicular to and one line that is parallel to y = 7x + 9.

User Rboy
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Answer:

please see answers below

Explanation:

in y = 7x + 9, the slope is 7 (the value with x after it is the slope).

to find a parallel line, we must use this slope value. we can pick any reasonable number for the y-intercept (the 9 in our equation).

so a parallel line could be y = 7x + 6.

the slope of a perpendicular line is given by -1/slope

= -1/7.

again, we can pick our own y-intercept.

y = -(1/7)x - 4 is the equation of one line perpendicular to y = 7x + 9

User John Klakegg
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