Answer:
45
Step-by-step explanation:
Answer:
everything is in the picture
slope = 3
y-intercept = 1
explanation
slope, m = (y2-y1)/(x2-x1)
= (19-10)/(6-3)
= 9/3
= 3
equation of a line is y = mx + c
at point (3,10)
=> 10 = 3*3 + c
=> c = 10-9
=> c = 1
finding y-intercept when x = 0
y = mx + c
by putting the values we have
y = 3*0 + 1
y = 1
I have edited my answer
" break even " is when ur expenses = revenue.....there is no profit made when u break even
expenses : 0.35x + 770
revenue (ur income) : 0.55x
so they have to equal to break even...so set them equal to each other and solve for x
0.35x + 770 = 0.55x
770 = 0.55x - 0.35x
770 = 0.2x
770 / 0.2 = x
3850 = x <== they must sell 3850 copies to break even