Which mathematical algorithm can be used to find the equation of line? A) y-y=m(x-x)
B) F+V=E+2
C) ax^2+bx+c=0
D) y2-y1=x2-x1

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

so the rectangle is 80cm (area)

now to find the area of a triangle.

base times height.

4 times 8.

your answer is 96cm.

hope this .

c ) y = 2.5 x - 26.25