The graph of y=5 is a horizontal line. The point (-4, 5) lies on the lines.
Step-by-step explanation:
This is horizontal because 5 on the y axis is always going to stay the same. For any x value, the y value is 5. Therefore, (-4, 5) is part of that line.
Let x be the original cost for the sofa. X x (1 + 0.07) =3210 X = 3000 Now we know the cost for the sofa. Let p be the profit percent. 3000 x (1 + p) = 3360 P = 0.12 So the percentage profit is 12%
