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1. Graph the equation y = 2x - 3

1. Graph the equation y = 2x - 3. 2. Find the slope of the line that passes through (–5, 6) and (0, 8). 4.5 GRAPH USING SLOPE-INTERCEPT FORM. slope-intercept form y = m x + b m is the slope *what does slope mean? b is the y-intercept. *what does y-intercept mean?.

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1. Graph the equation y = 2x - 3

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  1. 1.Graph the equation y= 2x - 3 2. Find the slope of the line that passes through (–5, 6) and (0, 8).

  2. 4.5GRAPH USING SLOPE-INTERCEPT FORM slope-intercept form y = mx + b m is the slope *what does slope mean? b is the y-intercept. *what does y-intercept mean? Steepness of the line (line crosses the y-axis)

  3. Identify the slope and y-intercept of the line with the given equation. y =x + 4 m= y = 5x – 3 m = 5 b = 4b = -3 Now we can use the slope and y-intercept to graph the line. Step 1: always graph y-intercept (b) first. This is your starting point Step 2: FROM THAT POINT.. graph the slope of the line(m) using

  4. Now try these: Graph each equation. y = 3x - 5 m= b = m = b=

  5. y =x + 3 m = b = y = -2x m = b =

  6. If additional day is needed 1. Identify slope and y-intercept, Then graph y= ½ x - 4 2. Find the slope of the line that passes through (–5, 6) and (-4, 9).

  7. A violin teacher charges a one-time sheet-music fee of $20 for adults and no fee for children. The charge per hour is $20 for both children and adults. The cost C for children for n lessons is given by C=20n and for adults by C=20n+20. a. Graph the two equations in the same coordinate plane. b. Based on the graphs, what is the difference in the costs?

  8. Day 2 • Graphing equations in slope-intercept form • Warm-up • Solve the equation for “y” • 3x – 5y = 10 • Graph the line of the equation • y = 3x + 2

  9. Today we will graph equations by re-writing them in slope-intercept form first. Is this equation in slop-intercept form? 3x +y =2 This equation is in Standard Form The standard equation of a line is__________________________ The slope-intercept equation of a line is______________________ So to graph a standard equation, re-write it in slope-intercept form (solve for “y”) so you can identify the slope and y-intercept.

  10. Write the equation in slope-intercept form. Determine the slope and y-intercept of the line. 1. 2.

  11. Write the equation in slope-intercept form. Graph the line. 1.

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