Question

You earn money to buy DVDs by mowing lawns for x dollars per lawn. One weekend you mow 4 lawns and buy 2 DVDs. Each DVD costs y dollars. You have $8 left at the end of the weekend. Which equation models this situation in slope-intercept form?

Answer 1

A. -2y=-4x+10
B. x=1/2y+2
C. y=2x+4
D. y=2x-4

Answer 2

D: help

Answer 3

Perhaps it's like this:
One weekend you mow 4 lawns(x) and buy 2 DVDs. Each DVD costs y dollars. You have $8 left:
4x -2y=8
2y = 4x-8
Divide both sides by 2 to get the slope-intercept form
y = 2x-4

Answer 4

oh, that is what i got, but i was confused.

Answer 5

Yes?

Answer 6

hmm?

Answer 7

What were you confused with?

Answer 8

I wasn't sure if that was the right answer,

Answer 9

but thanks!

Answer 10

welcome!~