A quadratic function f is given. f(x) = x2 + 6x + 8 (a) Express f in...
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A quadratic function f is given.
f(x) = x2 + 6x + 8
(a) Express f in standard form.
f(x) =
(b) Find the vertex and x- and y-intercepts off. (If an answer does not exist, enter DNE.)
vertex    (x, y) =
 Â
x-intercepts    (x, y) =
 Â
(smaller x-value)(x, y) =
 Â
(larger x-value)y-intercept    (x, y) =
 Â
(d) Find the domain and range of f. (Enter your answersusing interval notation.)
domain    range Â
A quadratic function f is given.
f(x) = x2 + 6x + 8
(a) Express f in standard form.
| f(x) | = |
(b) Find the vertex and x- and y-intercepts off. (If an answer does not exist, enter DNE.)
| vertex    | (x, y) | = | |||
| x-intercepts    | (x, y) | = | |||
| (x, y) | = | ||||
| y-intercept    | (x, y) | = |
(d) Find the domain and range of f. (Enter your answersusing interval notation.)
| domain    | |
| range  |
Answer & Explanation Solved by verified expert
4.1 Ratings (480 Votes)
(a) f(x) = (x + 3)^2 - 1
(b) Vertex : (-3 , -1)
Smaller x-value intercept : (-4 , 0)
Larger x-value intercept : (-2 , 0)
y-intercept : (0 , 8)
(c) Domain : (-∞ , ∞)
Range :
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