Answer:
They are parallel but they are not equal where y=7x^2 It's y intercept is 0 and for y=7x^2+4 it's y intercept is 4
Step-by-step explanation:
The line will start in the second quadrant and end in the fourth quadrant.
Markup =
profit /cost * 100%
for one :
profit=10-6=4$
so ×100≅<u>66.67%</u>