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Suppose that a and b are positive real numbers, and let

f(x) = ax if x = -4

f(x) = bx if x > -4

If f(-4)=-\frac{60}{13} and f(4)=3120, what is a+b?

 Jul 19, 2022
 #1
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a = 15/13, and b = 780, a+b = 781 2/13 or 10155/13

 Jul 19, 2022

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