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Objective - To graph linear equations using the slope and y-intercept.

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Presentation transcript:

please quietly copy onto your class notebook 11/23/10 Our Math Goal: To use slope and y-intercept to find the function for any table. Homework: p.504 #13 to 17 1) Copy and complete the following table, then graph. 2) Look up what the word intersect means. 3) Where does the line intercept the y-axis? x Function? Y (x,y) ? 1 (0,1) 3 (1,3) 2 5 7

y = slope x y-intercept

Classwork Example Graph the two points onto your graph paper and find the slope and y-intercept of each line. Use them to write the function equation. Line #1 A(-1,-2) B(2,4)

Try on your own Graph this line onto your graph paper and find the slope and y-intercept of each line. Write the equation. Line #2 C(-1,-4) D(3,4)

See if you can do this one Graph this line onto your graph paper and find the slope and y-intercept of each line. Write the equation. Line #3 E(-4,2) F(4,6)

Self-Test to see if you got it! Graph this line onto your graph paper and find the slope and y-intercept of each line. Write the equation. Line #4 G(-1,5) H(4,-5)

Create a graph for the following table, and then use it to find the function equation using slope and y- intercept x Equation? y -3 1 -1 2 3

Review for HSA: Which of the following best represents the graph of a linear equation that has a slope of 3 and a y-intercept of –2? A B C D