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2. Determine the zeros of \( f(x)=x^{2}-3 x-4 \) and estimate the instantaneous rate of change in \( f(x) \) at the zeros. 3. A student is walking in a straight line in front of a motion sensor. The student walks at a constant rate from a point \( 2 \mathrm{~m} \) from the motion sensor to a point \( 8 \mathrm{~m} \) from the sensor in \( 4 \mathrm{~s} \). What is the student's speed during this walk? 4. If \( f(x)=|3 x|-10 \) and \( g(x)=2 x^{3} \), what is \( (g \circ f)(-2) \) ? 5. Both \( f(x) \) and \( g(x) \) are linear functions, and their graphs intersect at the point \( \left(-\frac{1}{2},-\frac{1}{2}\right) \). What is \( \left.g(f(x))\right) \) ? 6. The graphs of \( f(x) \) and \( g(x) \) are shown. What is \( g(f(4)) \) ?

Given function is as f(x)=x2?

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