Applications of Slope Intercept Form

Lesson 9.4

Applications of Slope Intercept Form

Visual:

​Given the equation y = 2x + 5, graph the line.

Graphing

Graph the equation:

y = 2x -2

Graphing

Graph the equation:

y = -x +6

​Put the equation into slope intercept form:

y - 8 = 5(x + 2)

Multiple Choice

Put the equation into slope intercept form:

y + 5 = 2(x + 6)

• y = 2x + 6

• y = 2x + 17

• y = 12x - 5

• y = 2x + 7

Multiple Choice

Put the equation in slope intercept form:

2y - 5 = 6x + 9

• y = 3x + 7

• y = 4x + 2

• y = 6x + 9

• y = 4x +10

​You are stacking books on a table. The table is already 3 feet high and each book adds 0.2 feet. Write an equation to model this situation, and explain how you know when this stack will be 10 feet high.

Multiple Choice

You are draining water from your pool. The pool started with 5000 gallons in it, and is being drained at a rate of 50 gallons per minute. Write an equation to model this situation.

• y = 50x + 5000

• y = 50x - 5000

• y = -50x + 5000

• y = -50x - 5000

Multiple Choice

Using the equation from the last problem,

y = -50x + 5000

How long will it take for the pool to be empty?

• 50 minutes

• 500 minutes

• 10 minutes

• 100 minutes

​Conclusion: Two complete sentences about what you learned, rate yourself 1-4.