Bell Quiz. Objectives Learn to write equations in slope-intercept form.

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Presentation transcript:

Bell Quiz

Objectives Learn to write equations in slope-intercept form.

Slope-Intercept Form The slope-intercept form of a linear equation can be used to graph lines quickly because it gives information about the characteristics of the graph of the equation.

Example 1 Determining the Slope and y-intercept of a line Determine the slope and the y-intercept of the equation. y = 3x – 4

Lesson Practice 1 Determine the slope and the y-intercept of the equation. y = 7x – 8

Example 2 Determining the Slope and y-intercept of a line Determine the slope and the y-intercept of the equation. 2x + 3y – 9 = 0

Lesson Practice 2 Determine the slope and the y-intercept of the equation. – 9x + 3y = 12

Solution of an Equation in Two Variables The solution of an equation in two variables is an ordered pairs that satisfies the equation. Solution of equations in two variables can be represented in a table of values or as a graph on a coordinate plane.

Example 3 Graphing an Equation of a Line in Slope-Intercept Form

Lesson Practice 3

Example 4 Graphing an Equation of a Line in Slope-Intercept Form

Lesson Practice 4

Example 5 Writing the Equation of a Line from a Graph Write the equation of the graphed line in slope- intercept form.

Lesson Practice 5 Write the equation of the graphed line in slope- intercept form.

Example 6 Writing the Equation of a Line from a Graph Write the equation of the graphed line in slope- intercept form.

Lesson Practice 6 Write the equation of the graphed line in slope- intercept form.

Example 7 Calculating rental Rates Monica is helping prepare a budget for her family vacation. The family has decided to rent canoes for a day on the lake. The rental for a canoe is a $25 flat fee plus $10 per hour. Write and equation in slope-intercept form to represent this situation and then graph it

Solution

Lesson Practice 7

Practice Problems 1

Practice Problems 2

Practice Problems 3

Practice Problems 4

Practice Problems 5

Practice Problems 6

Practice Problems 7

Practice Problems 8

Practice Problems 9

Practice Problems 10