SOLUTION: Can someone explain this to me and how to approach it?
Which of the following functions satisfies the inequality
f(2)is less than f(-2)?
Answer choices:
A. f(x) = 2x^2 + 2
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-> SOLUTION: Can someone explain this to me and how to approach it?
Which of the following functions satisfies the inequality
f(2)is less than f(-2)?
Answer choices:
A. f(x) = 2x^2 + 2
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Question 985455: Can someone explain this to me and how to approach it?
Which of the following functions satisfies the inequality
f(2)is less than f(-2)?
Answer choices:
A. f(x) = 2x^2 + 2
B. f(x) = 2x^2 - 2
C. f(x) = -2x^2 - 2
D. f(x) = 2x + 2
E. f(x) = -2x-2
Thank you.
Helen Found 2 solutions by josgarithmetic, MathTherapy:Answer by josgarithmetic(39620) (Show Source):
You can put this solution on YOUR website! Familiarity with parabola functions would help. All of the parabola function choices are symmetric around the y-axis and either open upward or downward. Each of those functions evaluated each at x=-2 and x=2 are equal there. You want . The only choice left un-examined in the linear function; and this one fails to have . This linear function slopes upward from left to right, inconsistent with the specified condition.
NONE of the function choices satisfy the condition.
You can put this solution on YOUR website!
Can someone explain this to me and how to approach it?
Which of the following functions satisfies the inequality
f(2)is less than f(-2)?
Answer choices:
A. f(x) = 2x^2 + 2
B. f(x) = 2x^2 - 2
C. f(x) = -2x^2 - 2
D. f(x) = 2x + 2
E. f(x) = -2x-2
Thank you.
Helen
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