Khan Academy
Khan Academy: Determining Tangent Lines: Lengths
Solve two problems that apply properties of tangents to determine if a line is tangent to a circle.
Khan Academy
Khan Academy: Determining Tangent Lines: Angles
Solve two problems that apply properties of tangents to determine if a line is tangent to a circle.
Texas Instruments
Texas Instruments: The Slope of the Tangent Line (Part2)
In this activity, students graph the cubic and quadratic functions. They also graph the slope values of the tangent lines for each of the function graphs.
Paul Dawkins
Paul's Online Notes: Tangent Lines and Rates of Change: Practice Problems
This section introduces two problems: rate of change of a function and tangent lines to functions. Both of these problems will be used to introduce the concept of limits.
CK-12 Foundation
Ck 12: Tangent Lines
[Free Registration/Login Required] Students can adjust the size of the circle to explore the tangent lines. Click learn more to watch a video and click challenge me to answer a practice question.
Analyze Math
Analyze Math: Solve Tangent Lines Problems in Calculus
The resource consists of examples that explore tangent lines. Practice exercises with solutions are included.
Cuemath
Cuemath: Tangent
Learn about the tangent definition in geometry, tangent geometry, tangent to a circle, tangent line equation. Check-out the solved examples for better understanding and try your hand at the tangent line calculator or solving a few...
Illustrative Mathematics
Illustrative Mathematics: G C, G Co Tangent Lines and the Radius of a Circle
In this task, students are shown a circle with center O and point P on the circle. L is a line that is a tangent to the circle at P. They must show that line OP is perpendicular to line L. Aligns with G-C.A.2, G-CO.A, and G-CO.C.9.
Cut the Knot
Cut the Knot!: Monge's Theorem of Three Circles and Common Tangents
Very good site presenting a Trig problem dealing with tangents lines and circles, then linking the student to the solution
Texas Instruments
Texas Instruments: Drawing a Line Tangent to a Circle
Students use the drawing and measurement tools of Cabri Jr. to draw a line tangent to a circle. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: The Slope of the Tangent Line (Part1)
In this activity, students use the CellSheet Application to approximate the slope of a line tangent to a curve.
Illustrative Mathematics
Illustrative Mathematics: G Srt Tangent Line to Two Circles
The purpose of this task is to use similar triangles and setting up a proportion in order to calculate a side length. Aligns with G-SRT.B.5.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 1 [Pdf]
The resource has scholars find an equation of the tangent line to the graph at a given point. The resource consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 2 [Pdf]
The resource has scholars find an equation of the tangent line to the graph at a given point. The resource consists of an enlarged printable version of a graph available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 3 [Pdf]
Students use a given graph and point to find an equation of the tangent line. The math graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 4 [Pdf]
Students use a given graph and point to find an equation of the tangent line. The math graph is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 5 [Pdf]
Students determine the equation of the tangent line to the graph at a given point. The handout includes a graph that is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 6 [Pdf]
Students determine the equation of the tangent line to the graph at a given point. The handout includes a graph that is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 7 [Pdf]
The exercise explores the equation of the tangent line at a given point and graph. The handout includes a graph that is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Tangent Line 8 [Pdf]
The exercise explores the equation of the tangent line at a given point and graph. The handout includes a graph that is available in PDF format.
Walter Fendt
Walter Fendt: Slope of a Secant / Tangent Line
A short interactive activity to help you visualize the slope of a secant as it gets closer to the tangent line.
Math Graphs
Houghton Mifflin: Math Graphs: Equation of a Tangent Line 1 [Pdf]
The example has students determine the equation of the tangent line to the graph at the given point. The problem is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Equation of a Tangent Line 2 [Pdf]
Learners determine the equation of the tangent line to the graph at the given point. The example is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Equation of a Tangent Line 3 [Pdf]
The resource practices computing the equation of the tangent line to the graph at the given point. The problem is available in PDF format.
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