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Help with #17 please

Help with #17 please-example-1
User Jorgesys
by
4.7k points

1 Answer

2 votes

Answer:

Third choice is the one you want

Explanation:

First off, we need to remember that for a line to be perpendicular to another line, its slope is the opposite reciprocal to the other line. The slope of our line is -1/4, so the opposite reciprocal slope is +4/1 or just 4. Now we know that m = 4.

The point-slope form of a line is


y-y_(1)=m(x-x_(1))

where m is the slope, y1 is the y coordinate of the point, and x1 is the x coordinate of the point. Filling in:


y-5=4(x-(-3)) which simplifies to


y-5=4(x+3) which simplifies further to


y-5=4x+12

Add 5 to both sides to get the equation into slope-intercept form:

y = 4x + 17

choice 3

User Richard McKechnie
by
5.8k points