Download presentation

Presentation is loading. Please wait.

Published byBradley Atterberry Modified over 2 years ago

1
Graph a linear equation Graph: 2x – 3y = -12 Solve for y so the equation looks like y = mx + b - 3y = -2x – 12 Subtract 2x to both sides. y = x + 4 Divide by –3 to both sides. Now we can choose values for x to find values for y. X Y 3y = (3) + 4 y = 2 + 4y = 6 6 PLOT 0 y = (0) + 4y = 4 4 -3 y = (-3) + 4 y = -2 + 4 y = 2 2 NOW GRAPH A LINE

2
Graph a linear equation Graph: 3x – 4y = 8 Solve for y so the equation looks like y = mx + b - 4y = -3x + 8 Subtract 3x to both sides. y = x – 2 Divide by –4 to both sides. Now we can choose values for x to find values for y. X Y 4y = (4) -2 y = 3 - 2y = 1 1 PLOT 0 y = (0) - 2y = -2 -2 -4 y = (-4) - 2 y = -3 - 2 y = -5 -5 NOW GRAPH A LINE

3
Graph a linear equation Graph: 3x = 6 Missing a y term, so solve for x X = 2 Divide by 3 Now we can graph a line in which the value for x is 2 in all coordinates. Notice the line is vertical because every coordinate on the line has an x coordinate of 2. (2, 6) (2, 0) (2, -5)

4
Graph a linear equation Graph: -4y = 12 Missing a x term, so solve for y Y = -3 Divide by -4 Now we can graph a line in which the value for y is -4 in all coordinates. Notice the line is horizontal because every coordinate on the line has a y coordinate of -4. (-3, -4) (0, -4) (3, -4)

5
Graph a linear equation using x and y intercepts. Graph: 2x – 3y = -12 Let x = 0 2(0) – 3y = -12 0 - 3y = -12 PLOT NOW GRAPH A LINE -3y = -12 y intercept is (0, 4) Now let y = 0 2x – 3(0) = -12 2x – 0 = -12 2x = -12 x = -6 x intercept is (-6, 0) y = 4

6
Graph a linear equation using x and y intercepts. Graph: -5x + 3y = -15 Let x = 0 -5(0) + 3y = -15 0 + 3y = -15 PLOT NOW GRAPH A LINE 3y = -15 y intercept is (0, -5) Now let y = 0 -5x + 3(0) = -15 -5x + 0 = -15 -5x = -15 x = 3 x intercept is (3, 0) y = -5

7
Graph a linear equation, by using y intercept and slope. Graph: 2x – 3y = -12 Solve for y so the equation looks like y = mx + b - 3y = -2x – 12 Subtract 2x to both sides. y = x + 4 Divide by –3 to both sides. Now the equation is in y = mx + b form called slope y-intercept form. m is the slope of the line and b is the y-intercept (0, 4) NOW GRAPH A LINE Now plot the y-intercept (0, 4) The slope of the line is so from the coordinate (0, 4) go up 2 lines, then move right 3 lines and plot a 2 nd point. UP 2 RIGHT 3

8
Graph a line given one point and the slope of the line. Graph the line that passes through the point (-4, 5) and has a slope of. Plot the point (-4, 5) Now from the point (-4, 5) the slope is, so go down 3 lines and then right 5 lines. DOWN 3 RIGHT 5 Now graph the line

Similar presentations

OK

Writing Linear Equations in Slope Intercept Form Goals: Write linear equations given 2 points. Decide which form of a line to use given initial information.

Writing Linear Equations in Slope Intercept Form Goals: Write linear equations given 2 points. Decide which form of a line to use given initial information.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on product management Ppt on caste system in india Ppt on recent changes in service tax Slide show view ppt on mac Ppt on total parenteral nutrition side Ppt on power system stability studies Ppt on gsm based home automation system Ppt on methods and techniques of data collection Download ppt on autonomous car Ppt on national education policy 1986 calendar