Consider the following. = 3x³ + x y = (a) Find the interval(s) of increase. O (-∞0, 0) 0 (0,00) O (0, 3) 00 0 (-00,00) Find the interval(s) of decrease. 0 (0,00) O (0, 3) 00 0 (-∞0, ∞0) 0 (-00, 0)

Q: Find the second derivative of the function. 8) s= +7+5t+3 ₁2

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A: f(x)=x+1for f(y2+2y)  put x=y2+2y in f(x)

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Q: 13) y= (х2+2х-1", бус? A) X+1 y в) чу (х+) D) — (XH) (x2+2*-1) 3/2 c) 1 2\722x-г

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Q: Given that f(x) = 4x² + 5X-9, find f (h-3)-f(-3) h

A: f(x)=4x2+5x-9for f(h-3) put h-3  in f(x)

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Q: Find an equation for the tangent to the curve at the given point. 6) y=x2-x, (-3, 12)

A: First find slope then use equation of tangent line