What is the range of the function f(x) = 3x2 + 6x – 8?
2 answers:
F(x) is a quadratic equation with the x-side squared and a is positive which means that the graph of the function is a parabola facing up. The range of f(x) is given by {y|y ≥ k}, where k is the y-coordinate of the vertex.
, written in vertex form is
, where (h, k) = (-1, -11)
Therefore, range ={y|y ≥ -11}
Therefore, range ={y|y ≥ -11}
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Answer:
The value of x is inversely proportional to the difference of <em>a</em> and <em>b</em>.
Step-by-step explanation:
The given expression is
We factor the left hand side to get:
We divide both sides by: a-b
Observe that the difference of a and b is in the denominator.
The whole is of the form:
The value of x is inversely proportional to the difference of <em>a</em> and <em>b</em>.