A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 40 dumpster loads of waste removed. In week 10, there were 30 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week.

f(x) = - 2x + 40

f(x) = 2x + 40

f(x) = - 2x + 50

f(x) = 2x + 50

Question

A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 40 dumpster loads of waste removed. In week 10, there were 30 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week.

f(x) = - 2x + 40

f(x) = 2x + 40

f(x) = - 2x + 50

f(x) = 2x + 50

lena772 · Answer

I think it's C, but I assumed that with logic

ganeshie8 · Answer

im trying to understand the question still

ganeshie8 · Answer

lets plot the two points

lena772 · Answer

f(x)=-2x+50

f(5)=-10+50
f(5)=40

f(10)=-20+50
f(10)=30

lena772 · Answer

Okay

ganeshie8 · Answer

(5, 40)

(10. 30)

ganeshie8 · Answer

wow ! you're brilliant

ganeshie8 · Answer

that works when u have options !

lena772 · Answer

y2-y1/x2-x1
30-40/10-5
-10/5
-2

y=-2x+b

30=-2*10+b
30=-20+b
50=b 

y=-2x+50

lena772 · Answer

That's if I do it your way haha :)

ganeshie8 · Answer

no, i liked ur logic it was quick

ganeshie8 · Answer

good job :)