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Bell Work Graph the equation. 1. 3 y x2 2 12/5/14 Bell work log due TODAY!!! 1) Put in slopeintercept form. 2) Find m and b. b = beginning m = move rise m run 3) Plot the y-intercept. 4) Plot more points by using the slope. 5) Make a line by connecting the dots. Yesterday’s Homework 1. Any questions? 2. Please pass your homework to the front. • Make sure the correct heading is on your paper. • Is your NAME on your paper? • Make sure the homework is 100% complete. • Incomplete work will NOT be accepted. Heading 4/9/2015 5.5B Slope-Intercept Form (not in function form) TSWBAT: graph a line using the slope and y-intercept not in slope-intercept form. Students graph a linear equation and compute the x- and y- intercepts (e.g., graph 2x + 6y = 4). They are also able to sketch the region defined by linear inequality (e.g., they sketch the region defined by 2x + 6y < 4). Notes • Rules for Graphing by Slope-Intercept Form 1. Put in slope-intercept form. 2. Find the slope (m) and y-intercept (b). 3. Plot the y-intercept. • b = beginning 4. Plot more points by using the slope. • m = move 5. Make a line by connecting the dots. Notes Find the slope and y-intercept. Ex. Ex. Ex. 3x y 7 Make 4 x 2itylook 10 3Make x 2ity look 8 like like slope-intercept slope-intercept 3x 3x 4x form! 4x 3x 3x form! Rewrite Rewrite y 3x 7 2 y the 4 x 10 2 y the 3x 8 Slope-Intercept y m x b Slope-Intercept 2 2 2 2 2 2 Formula! Formula! 3 m 33 y 2x 5 m y x 4 2 y mx b b7 y m xb m2 33 m , bb44 m bb 55 22 Notes Graph. Ex. 3x y 2 3x 3x y 3x 2 m 3 b 2 b = beginning m = move rise m run 3 3 1 1 1) Put in slopeintercept form. 2) Find m and b. 3) Plot the yintercept. 4) Plot more points by using the slope. 5) Make a line by connecting the dots. Notes Graph. Ex. 4x 3 y 9 4x 4x 3 y 4 x 9 3 3 3 4 y x3 3 4 m b3 3 rise m run 4 4 3 3 b = beginning m = move 1) Put in slopeintercept form. 2) Find m and b. 3) Plot the yintercept. 4) Plot more points by using the slope. 5) Make a line by connecting the dots. Notes Graph. Ex. 6 x 4 y 16 6x 6x 4 y 6 x 16 4 4 4 3 y x4 2 3 m b 4 2 rise m run 3 3 2 2 b = beginning Now you try. m = move 1) Put in slopeintercept form. 2) Find m and b. 3) Plot the yintercept. 4) Plot more points by using the slope. 5) Make a line by connecting the dots. Summary To graph a line first put the equation into slopeintercept form. Now find your slope and __-intercept. y ________ Begin with your y-intercept and then move according slope Plot multiple points and graph the ____. line to your _____. Today’s Homework Rules for Homework 1. Pencil ONLY. 2. Must show all of your work. • NO WORK = NO CREDIT 3. Must attempt EVERY problem. 4. Always check your answers. Homework 5.5B Graph 1. 2x y 3 2. 3x y 5 3. 5x y 1 4. 4x y 1 5. 2 x y 3 6. 3x y 4 7. 9x 3 y 6 8. 8x 4 y 24 9. 6 x 2 y 18 12. 3x 2 y 12 10. 3x 2 y 6 11. 4 x 3 y 15 Ticket Out the Door Complete the Ticket Out the Door without talking!!!!! Talking = time after the bell! Put your NAME on the paper. When finished, turn your paper face DOWN. Graph. 2 x 3 y 12