SOLUTION: write the equation of the line perpendicular to y=4-2.5x and passing through the point (1,5)

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Question 425320: write the equation of the line perpendicular to y=4-2.5x and passing through the point (1,5)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Find the slope of this line

y=-2.5x+4
Compare this equation with y=mx+b
slope m = -2.50

The slope of a line perpendicular to the above line will be the negative reciprocal
m1*m2=-1
The slope of the required line will be 2/5=0.40

m=0.40,point(1,5)
Find b by plugging the values of m & the point in
y=mx+b
5=0.4+b
b=4.6
m= 2/5
The required equation is y=0.4x+4.6