As is the case for any polynomial, the domain of this one is (-infinity, +infinity).
To find the range, we need to determine the minimum value that f(x) can have. The coefficients here are a=2, b=6 and c = 2,
The x-coordinate of the vertex is x = -b/(2a), which here is x = -6/4 = -3/2.
Evaluate the function at x = 3/2 to find the y-coordinate of the vertex, which is also the smallest value the function can take on. That happens to be y = -5/2, so the range is [-5/2, infinity).
Answer: 8=1/2x
Step-by-step explanation:
Answer: 12°30’
Step-by-step explanation:
Yes the correct answer is A
Answer:
x = -7.25
Step-by-step explanation:
multiply -4 by 2x + 5 = -8x - 20
-8x -20 -3 = 35
-8x - 23 = 35
-8x = 35 + 23
-8x = 58
x = 58 / -8
x = -7.25