Find the slope of the line that goes through the points (15,10) and (-15,1)

To find the slope when given 2 sets of points.

Use the formula:  y2-y1/x2-y2

Y2 is 1

y1 is 10

x2 is -15

x1 is 15

1-10/-15-15=

-9/-30

3/10

The answer is not negative because when you divide -/-= a positive answer.

The slope would be -3/10. I got this by

(-15,1)-(15,10)=30, -9

then you put the right number on top for your slope -9/30.

Then you simplfy.

(-9/30)/3=-3/10.

828. all there is to it!

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area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2