Question 1187263

Lucy borrowed $80 from her friend in order to help buy a new video game system.  Lucy agreed to pay back her friend $8 per week

write an equation representing the amount Lucy OWES her friend
I know the slope is -8 because she is paying back 8 dollars a week
y=-8x is that right? or would it be 80=-8x?
<pre>Your axes are labeled correctly. Your slope is also correct since every week, the $80 sum is DECREASED by $8. 
As the amount owed is $80, the y-intercept is 80, and the line of the equation will slope downwards, since it's NEGATIVE.
The equation will then be {{{highlight_green(matrix(1,3, y, "=", - 8x + 80))}}}.