SOLUTION: What is the range of y = -x^2 - 2x + 3 A. x ≤ 4 B. x ≤ -4 C. y ≤ 4 D. y ≥ -4

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Question 1206757: What is the range of y = -x^2 - 2x + 3
A. x ≤ 4
B. x ≤ -4
C. y ≤ 4
D. y ≥ -4

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!


you have an upside down parabola which have a max at vertex, so the range will be all less and equal to the coordinate of the vertex
find vertex
....




vertex is at (,)
so, the range is
{ element : }



answer: C.


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