In this Khan Academy activity, students will find the length of an arc when the central angle is given in radians.
This video converts the radian measures pi and -pi/3 to degrees.
Editable PPT on solving radical equations and extraneous solutions.
Worksheet with practice on simple radical equations and extraneous solutions.
Worksheet with simple radical equations and extraneous solutions.
In this Khan Academy activity, students will use the the graph of a basic radical to find the graph of one that has been transformed.
In this video, students learn how the number Pi allows us to relate the radius, diameter, and circumference of a circle.
Students must reason directly from the structure of the expression on the right hand side of the formula, because they are not given the initial volume and height and so do not have enough information to recalculate the radius directly.
Students investigate inequalities applied to volume and perimeter.
This video solves a word problem about the combined leaf-bagging rates of Ian and Kyandre, by creating a rational equation that models the situation.
This video solves a word problem about the combined deck-staining rates of Anya and Bill, by creating a rational equation that models the situation.
This video solves a word problem about the combined pool-filling rates of two water hoses, by creating a rational equation that models the situation. The equation has a solution that is eliminated due to the context.
Worksheet on multiplying and dividing rational expressions
Worksheet explaining how to add and subtract rational expressions with 44 practice problems and solutions.
Worksheet explaining how to multiply and divide rational expressions with 44 practice problems and solutions.
This lesson demonstrates the reflection of a function across the x-axis on a graph.
This lesson demonstrates the reflection of a function across the y-axis on a graph.
This task examines the ways in which the plane can be covered by regular polygons in a very strict arrangement called a regular tessellation. These tessellations are studied here using algebra, which enters the picture via the formula for the measure of the interior angles of a regular polygon (which should therefore be introduced or reviewed before beginning the task). The goal of the task is to use algebra in order to understand which tessellations of the plane with regular polygons are possible.
This video shows the inverse relationship between exponential and logarithmic using a graph.
Given incomplete tables of values of b^x and its corresponding inverse function, log_b(y), students use the inverse relationship of the functions to fill in the missing values.