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The functions q and r are defined as follows.q(x) = -x - 2r(x) = -2x^2 -2Find the value of r(q(-4))...
4 months ago
Q:
The functions q and r are defined as follows.q(x) = -x - 2r(x) = -2x^2 -2Find the value of r(q(-4)) .
Accepted Solution
A:
Answer: r(q(-4)) = -10Step-by-step explanation:q(x) = -x - 2 r(x) = -2x^2 -2 r(q(-4)) First find q(-4)Let x=-4q(-4) = -(-4) - 2 q(-4) = +4 -2 = 2q(-4) =2We substitute this value in for x in r(x)r(2) = -2(2)^2 -2 = -2 (4) -2 = -8 -2 = -10