Make two equations from the information. Then graph them and see where they intersect. The answer is 62 miles. Plug 62 back into both equations and they should both be the same number.
Rewrite the function by completing the square f(x) =4x2+12x+9
1 answer:
Answer:
see explanation
Step-by-step explanation:
Given
f(x) = 4x² + 12x + 9
The coefficient of the x² term must be 1 so factor out 4 from the first 2 terms
f(x) = 4(x² + 3x) + 9
To complete the square
add/ subtract ( half the coefficient of the x- term)² to x² + 3x
f(x) = 4(x² + 2()x +
-
) + 9
= 4(x + )² - 9 + 9
= 4(x + )²
Thus
f(x) = 4x² + 12x + 9 = 4(x + )²
You might be interested in