Which of the equation of the quadratic function whose zeros are -8 and -5?
a. f (x) = *2- 13x + 40
c. f (x) = x2 + 13x + 40
b. f (x) = 72 - 14x + 40
d. f (x) = x2 + 14x + 40
a. f (x) = *2- 13x + 40
c. f (x) = x2 + 13x + 40
b. f (x) = 72 - 14x + 40
d. f (x) = x2 + 14x + 40
Answers & Comments
Answer:
The answer is f(x) = x2 + 13x + 40
Step-by-step explanation:
The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeroes), replace y with 0 and solve for x.
x = -5, -8
Answer:
x²+13x+40=0
Step-by-step explanation:
(x+8)(x+5)
x²+5x+8x+40=0
x²+13x+40=0