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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

5. Standard Form

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Exercise 16 Page 326

Intercepts are the points at which the line crosses the axes.

Practice makes perfect

An intercept is a point at which the line crosses an axis. Like any other point on the plane, an intercept is an ( x, y) coordinate pair. At the x-intercept, the y-value is 0. Similarly, at the y-intercept, the x-value is 0. x-intercept: ( x, 0) y-intercept: ( 0, y)

We are told that the x-intercept is 4, and the y-intercept is -3. We can use this information to create two coordinate pairs. x-intercept: ( 4, 0) y-intercept: ( 0, - 3) To graph the line of an equation with these intercepts, we will plot and connect them with a line.

Subchapter links

Lesson Check p.325

Practice and Problem-Solving Exercises p.326-328

Standardized Test Prep p.328

Mixed Review p.328