(5.12a) The ampunt of money still owed on a loan is a function of the number of months the borrower has been paying off the loan. The rate of change of the function
is -200 dollars per month and its initial value is 8000 dollars. Write your answer in
y = mx + b form simplified

Step-by-step explanation:

y = -200x+8000

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.