1. EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. y = 3x + 41. 3x + y = 22. SOLUTION The equation is in the form y = mx + b. So, the slope of the line is 3, and the y -intercept is 4. a. b. Rewrite the equation in slope-intercept form by solving for y.

2. EXAMPLE 1 Identify slope and y-intercept 3x + y = 2= 2 Write original equation. y= –3x + 2 Subtract 3x from each side. ANSWER The line has a slope of –3 and a y- intercept of 2.

3. EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. y = 5x – 31. GUIDED PRACTICE for Example 1 ANSWER 5, –3

4. EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. 3x – 3y = 122. GUIDED PRACTICE for Example 1 ANSWER 1, –4

5. EXAMPLE 1 Identify slope and y-intercept Identify the slope and y- intercept of the line with the given equation. x + 4y = 63. GUIDED PRACTICE for Example 1 ANSWER 4 1 , 2 1 1