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Section 5.4 Derivatives
Find the derivative
\(f'(x)\) for each function. Choose the correct answer.
Subsection 5.4.2 Implicit Differentiation
Find
\(\frac{dy}{dx}\) using implicit differentiation for each equation. Choose the correct answer.
Checkpoint 5.4.21.
Find
\(\frac{dy}{dx}\) for the equation
\(x^2 + y^2 = 25\text{.}\)
Checkpoint 5.4.22.
Find
\(\frac{dy}{dx}\) for
\(x^3 + y^3 = 6xy\text{.}\)
\(\frac{2y - x^2}{y^2 - 2x}\)
-
\(\frac{x^2 - 2y}{2x - y^2}\)
-
\(\frac{3x^2}{6 - 3y^2}\)
-
\(\frac{2x - y^2}{2y - x^2}\)
-
Checkpoint 5.4.23.
Find the derivative
\(y'\) of
\(\sin(y) = x\text{.}\)
Checkpoint 5.4.24.
Differentiate implicitly:
\(e^y = x^2 + y\text{.}\)
Checkpoint 5.4.25.
Find
\(\frac{dy}{dx}\) for
\(xy = 10\text{.}\)
Checkpoint 5.4.26.
Find
\(y'\) for the equation
\(x^2 y + y^2 x = 6\text{.}\)
\(-\frac{2xy + y^2}{x^2 + 2xy}\)
-
\(\frac{2xy + y^2}{x^2 + 2xy}\)
-
-
-
Checkpoint 5.4.27.
Find
\(\frac{dy}{dx}\) at the point (1, 1) for
\(x^2 + xy + y^2 = 3\text{.}\)
Checkpoint 5.4.28.
Differentiate
\(\ln(xy) = x + y\text{.}\)
\(\frac{y(1-x)}{x(y-1)}\)
-
\(\frac{x(1-y)}{y(x-1)}\)
-
-
\(\frac{xy - y}{x - xy}\)
-
Checkpoint 5.4.29.
Find
\(y'\) for
\(\tan(x+y) = x\text{.}\)
Checkpoint 5.4.30.
Find
\(\frac{dy}{dx}\) for
\(\sqrt{x} + \sqrt{y} = 4\text{.}\)
Subsection 5.4.3 Tangent and Normal Lines
Find the slope or equation of tangent and normal lines for the given curves.
Checkpoint 5.4.31.
Find the slope of the tangent line to the curve
\(y = 3x^2 - 5x + 2\) at
\(x = 2\text{.}\)
Checkpoint 5.4.32.
What is the slope of the normal line to the curve
\(y = x^3 - 2x\) at the point (1, -1)?
Checkpoint 5.4.33.
Find the equation of the tangent line to the curve
\(y = e^{2x}\) at
\(x = 0\text{.}\)
Checkpoint 5.4.34.
Find the equation of the normal line to the curve
\(y = \ln(x)\) at the point (1, 0).
Checkpoint 5.4.35.
At which point on the curve
\(y = x^2 - 4x + 5\) is the tangent line horizontal?
Checkpoint 5.4.36.
Find the slope of the tangent line to the circle
\(x^2 + y^2 = 25\) at the point (3, 4) using implicit differentiation.
Checkpoint 5.4.37.
What is the equation of the tangent line to the curve
\(y = \sin(x)\) at the point (0, 0)?
Checkpoint 5.4.38.
Find the equation of the normal line to the curve
\(y = \frac{4}{x}\) at the point (2, 2).
Checkpoint 5.4.39.
The curve
\(y = ax^2 + bx\) has a tangent line with slope of 5 at the point (1, 3). Find the values of
\(a\) and
\(b\text{.}\)
\(a = 2\text{,}\) \(b = 1\)
-
\(a = 1\text{,}\) \(b = 2\)
-
\(a = 3\text{,}\) \(b = 0\)
-
\(a = -1\text{,}\) \(b = 4\)
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Checkpoint 5.4.40.
Find the
\(x\)-coordinate(s) on the curve
\(y = \frac{1}{3}x^3 - 2x^2 + 3x\) where the tangent line is parallel to the x-axis.
-
-
-
\(x = -1\) and
\(x = -3\)
-
Checkpoint 5.4.41.
Find the slope of the tangent line to
\(f(x) = e^{3x}\) at
\(x = 0\text{.}\)
Checkpoint 5.4.42.
Find the equation of the normal line to
\(f(x) = \ln(x + 1)\) at the point (0, 0).
Checkpoint 5.4.43.
What is the slope of the tangent line to
\(f(x) = \cos(2x)\) at
\(x = \pi/4\text{?}\)
Checkpoint 5.4.44.
Find the equation of the tangent line to
\(f(x) = 2^x\) at the point (1, 2).
\(y - 2 = 2\ln 2\ (x - 1)\)
-
-
\(y - 2 = \ln 2\ (x - 1)\)
-
-
Checkpoint 5.4.45.
Find the slope of the normal line to
\(f(x) = \tan(x)\) at
\(x = \pi/4\text{.}\)
Checkpoint 5.4.46.
At what value of
\(x\) does the function
\(f(x) = x e^x\) have a horizontal tangent?
Checkpoint 5.4.47.
Find the equation of the tangent line to
\(f(x) = \ln(x^2)\) at
\(x = e\text{.}\)
Checkpoint 5.4.48.
What is the slope of the normal line to
\(f(x) = \sin(x) + \cos(x)\) at
\(x = 0\text{?}\)
Checkpoint 5.4.49.
Find the equation of the tangent line to
\(f(x) = e^x \cos(x)\) at (0, 1).
Checkpoint 5.4.50.
Find the slope of the tangent line to
\(f(x) = \log_{10}(x)\) at
\(x = 10\text{.}\)