Which of the following functions is quadratic? - A. y = x + 3 B. y = 5 - 6x2 C. f(x) = 2x + 1-5 D. f(x) = 7(4x + 5)
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Which of the following functions is quadratic? - A. y = x + 3 B. y = 5 - 6x2 C. f(x) = 2x + 1-5 D. f(x) = 7(4x + 5)
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Answer:
B.
Step-by-step explanation:
It is a quadratic function because its highest degree is 2.
Answer:
1.F(x)=2x2 + 3x - 5 is the only quadratic function in the set of 4 functions
2. The graph of this quadratic function is a parabola Up . x1 = -2.5 and x2 = 1 are the abscissas of the x-axis intercepts. y=-5is the ordinate of the y-axis intercept.
3. Down because -3 is negative
4. y=2x2 + 3x - 5 is the only quadratic function written in standard form.
Step-by-step explanation:
so my answer is C