Question: Two easy Calculus Questions please show work and write neatly don't over complicate the work 7) If f(x) = x2 -4x - 8, determine if

Two easy Calculus Questions please show work and write neatly don't

Two easy Calculus Questions please show work and write neatly don't over complicate the work

over complicate the work 7) If f(x) = x2 -4x - 8,

7) If f(x) = x2 -4x - 8, determine if there is at least one x-intercept between [-2, 2], using the calculus we learned in class, be sure to justify your answer 9) A particle moves in a straight line according to the law of motion: s = t - 2t2 - 4t + 8. Find the acceleration when t=1

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