Understanding Derivatives and Tangent Lines

The video tutorial explains how to find the derivative of a given function and determine the slope of the tangent line at x=2. It begins by rewriting the function using rational and negative exponents to apply the power rule of differentiation. The derivative is calculated step-by-step, simplified, and expressed with positive exponents. Finally, the slope of the tangent line at x=2 is determined, and the function is graphically represented to illustrate the point of tangency.

What is the main objective of the problem discussed in the video?

• To find the integral of a function

• To determine the derivative and slope of the tangent line

• To solve a quadratic equation

• To calculate the area under a curve

How is the square root of x expressed using a rational exponent?

• x^(3/2)

• x^(1/2)

• x^(-1/2)

• x^2

What is the purpose of rewriting 4 divided by x cubed using a negative exponent?

• To apply the power rule of differentiation

• To find the integral

• To simplify the expression

• To make the function continuous

Tags

CCSS.8.EE.A.1

What is the derivative of 0.5e^x?

• 0.5x

• e^x

• 0.5e^x

• 0.5

Tags

CCSS.8.EE.A.1

How is x^(-1/2) expressed using positive exponents?

• 1/x^2

• x^2

• x^(1/2)

• 1/x^(1/2)

What is the simplified form of the derivative f'(x)?

• x^(1/2) + 12x^4 + 0.5e^x

• 1/sqrt(x) + 12/x^4 + 0.5e^x

• x^(-1/2) + 12x^(-4) + 0.5e^x

• 1/x + 12/x^3 + 0.5e^x

Tags

CCSS.HSF.IF.A.2

What is the value of f'(2) used to find the slope of the tangent line?

• 3.1415

• 5.1516

• 2.7182

• 1.4142

Tags

CCSS.HSF.LE.B.5

What does the red line represent in the graphical visualization?

• The y-axis

• The x-axis

• The function f(x)

• The tangent line at x = 2

What is the significance of the point of tangency on the graph?

• It is where the function intersects the y-axis

• It is where the slope of the tangent line is calculated

• It is the minimum point of the function

• It is the maximum point of the function

What is the approximate slope of the tangent line at x = 2?

• 1.4142

• 5.1516

• 3.1415

• 2.7182