F(x)= -x^2 -3 (hope this helps)
To isolate b, add a and subtract c to the entire equation:
D - a + c = -b
Muliply b by -1 to eliminate the negative:
-D + a - c = b
Answer: 66 2/3
Step-by-step explanation:
360 x
—— = ——
540 100
The point at which the two lines intersect is (4,7).
