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Pearson Algebra 2 Common Core, 2011

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Pearson Algebra 2 Common Core, 2011 View details

3. Linear Functions and Slope-Intercept Form

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Exercise 47 Page 79

Identify the y-intercept. Then, find another point that lies on the grid.

Slope: 0
y-intercept: (0,3)

Practice makes perfect

Equations written in slope-intercept form follow a specific format. y= mx+ b

In this form, m is the slope and b is the y-intercept. We need to identify these values using the graph. Let's start with the y-intercept.

Finding the y-intercept

Observe the given graph.

We can see that the function intercepts the y-axis at (0, 3). This means that the value of b is 3.

Finding the Slope

As we can see from the graph the line is horizontal. When the line is horizontal, the slope is always equal to 0.

Subchapter links

Lesson Check p.78

Practice and Problem-Solving Exercises p.78-80

Standardized Test Prep p.80

Mixed Review p.80