What is the y intercept for the equation: y = -8x^2 + 3x - 7
1 answer:
You might be interested in
Answer:
(f + g)(x) = 2x
(f - g)(x) = 16
(fg)(x) = - 64
(f/g)(x) = (x + 8)/(x - 8) Domain: x < 8 ∪ x > 8
Step-by-step explanation:
(f + g)(x) = f(x) + g(x) = x + 8 + x - 8 = 2x
(f - g)(x) = f(x) - g(x) = x + 8 - (x - 8) = x + 8 - x + 8 = 16
(fg)(x) = f(x)g(x) = (x + 8)(x - 8) = - 64
(f/g)(x) = f(x)/g(x) = (x + 8)/(x - 8)
x - 8 ≠ 0
x ≠ 8
Domain: x < 8 ∪ x > 8