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So anytime we have a slope and want to find the slope of a perpendicular line, we just have to remember a perpendicular line's slope is the negative reciprocal (reciprocal means flip the fraction). So if we had a slope of 3/4, the slope perpendicular to it would be - 4/3.
First we need to find our slope, to do this we take the change in y over the change in x like so:
(15-12)/(4-7) = - 3/4
The slope perpendicular to this is 4/3.
X=
with x+6=10
yo try to move everything to the opposite side of the X.
so:
adding equals subtracting. + = -
subtracting equals adding. - = +
dividing equals multiplaying. ÷ = ×
and multiplaying equals to dibidion. × = ÷
First substitute
(3)(4)/4
then simplify.
12/4
then solve
3
