Derivatives

Find the derivative of the given equation
f(x) = x⁴ + 4x³ - 2x²

• x³ + x² - x
• 4x³ + 12x² + 4x
• 4x + 12x - 4x
• 4x³ + 12x² - 4x

Differentiate f(x) =(2/ x⁵) - 5.

• x⁵-3
• -10x⁶ 
• x⁵-5
• -10x^-6 

• cosx
• -cosx
• -sinx cosx
• sinx cosx

Which is the equation of the tangent line at x = 0? $f\left(x\right)=\frac{x^2}{2}+4x+7$  

• y = 7x + 5/2

• y = 1

• y = 8x - 1

• y = 4x + 7

Find the slope of f(x) = -3x² - 6x at x = 1.

• m = 0
• f'(x) = -6x - 6
• f'(x) = 6x
• m = -12

Tags

CCSS.8.EE.B.5

• 0 only
• 0 and 2 only
• 0, 1, 3 only
• 0, 1, 2, 3

• B
• C
• D
• E