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Oksana_A [137]
4 years ago
5

Sonia graphs the equations y = –x2 + 4x and y = x – 4 to solve the equation –x2 + 4x = x – 4. Her graph is shown below.

Mathematics
2 answers:
egoroff_w [7]4 years ago
4 0

c.-1 and 4 because thats where it intercepts

ipn [44]4 years ago
3 0
The line and parabola intersect at x=-1 and x=4, so your solution is C. –1 and 4
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You can prove this statement as follows:

Step-by-step explanation:

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If we denote by m=2s^2+2 we have that (2k+1)^{2}=8m+1.

Case 2. if k is odd we have: (2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1.

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