PLEASE HELP write a mathematical expression for the area of the triangle as a function of the length of the base. use the letter s to represent the length of the base of the triangle described below. the base of an isosceles triangle is 1/8 as long as the two equal sides.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)