Which of these is a point-slope equation of the line that is perpendicular to y-25=2(x-10) and passes through (-3,7)
2 answers:
Y = 2x +13
We know the slope to be 2 because lines that are parallel have the same slope. Then we can solve using slope-intercept form and the known point.
y = mx + b ----> Input known values
7 = (2)(-3) + b ---> Multiple
7 = -6 + b ----> Subtract 3 from both sides
13 = b
Now we can use the y-intercept found and the slope to write the equation above.
Answer:
y-7= -1/2(x+3)
(apex)
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