Answer:
f'(- 3) = - 19
Step-by-step explanation:
Differentiate using the power rule
[tex]\frac{d}{dx}[/tex](a[tex]x^{n}[/tex]) = na[tex]x^{n-1}[/tex]
Given
f(x) = 2x² - 7x, then
f'(x) = 4x - 7 and
f'(- 3) = 4(- 3) - 7 = - 12 - 7 = - 19
