They spent 5839 on electrical appliances and 6659 on furniture
1:24 and 2:20 and 3:30 and 4:16 and 5:12
Slope intercept form:
y = mx + b
Where m = slope and b = y-intercept.
By looking at the graph, we can see that the line cuts at 1/2 on the y-axis, therefore eliminating option D.
So now we have:
y = mx + 1/2Next, we'll find the slope.

Plug the coordinates into the formula.

So our slope is 5/8 and the y-intercept is 1/2.
Option A is the answer.
So it would be 10-2x . X would be the months and it would be -2 because she uses that much per month