Answer:
x=-8/7 or -1.1428
Explanation:
The roots (zeros) are the x
values where the graph intersects the x-axis. To find the roots (zeros), replace f(x) with 0 and solve for x
f'(x) = 7
This is a basic derivative problem. The first derivative of f(x) would multiply the 7 by the power of x (which is one) and get rid of the 8. So, all you have left is 7 times 1 and your answer would be 7.
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