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Algebra 5.2. Using Intercepts. Learning Targets. Language Goal Students will be able to find x- and y- intercepts and interpret their meanings in real-world situations. Math Goal Students will be able to use x- and y- intercepts to graph lines. Essential Questions
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Algebra 5.2 Using Intercepts
Learning Targets Language Goal Students will be able to find x- and y- intercepts and interpret their meanings in real-world situations. Math Goal Students will be able to use x- and y- intercepts to graph lines. Essential Questions Why are intercepts a good source to graph lines?
Vocabulary The y coordinate of the point where the graph intersects the y-axis. (0, y) The x coordinate of the point where the graph intersects the x-axis. (x, 0) y-intercept: x-intercept:
Example 1: Finding Intercepts Find the x- and y- intercepts 1. 2. 3.
Example 3: Graphing Linear Equations by Using Intercepts • Two Steps: • 1: Find the intercepts • Both x and y intercepts • 2: Graph the line. • Plot the two points • Connect with a line
Practicing Solving for x and y A. B. C. D.
Finding x- and y- intercepts. Rally Coach
Rally Coach Check! 1. 2. 3. 4.
Rally Coach Check! 5. 6. 7. 8.
Example 3: Graphing Linear Equations by Using Intercepts Find the intercepts Graph the line
Example 3: Graphing Linear Equations by Using Intercepts Find the intercepts Graph the line
Example 3: Graphing Linear Equations by Using Intercepts Find the intercepts Graph the line
Practice C: Find the x- and y-intercepts
Practice C: Use intercepts to graph the line described by each equation.
Practice C: Use intercepts to graph the line described by each equation.