4.3
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This document provides instructions for finding the x-intercept and y-intercept of a linear function in standard form Ax + By = C. It explains that to find the x-intercept, substitute 0 for y and solve for x, and to find the y-intercept, substitute 0 for x and solve for y. With these intercepts, the linear function can be graphed. Examples of an x-intercept of (3,0) and a y-intercept of (0,-9/5) are also given.
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4.3
- 1. Standard Form Ax + By = C A, B, and C are whole numbers A is usually positive.
- 2. When you have a linear function in standard form, it is very simple to find the x and y intercepts of the line. Look at the next slides to find out how to find x and y intercepts.
- 3. To find the x-intercept of a linear equation, substitute the value of 0 in for y and then solve for x.
- 4. To find the y-intercept of a linear equation, substitute the value of 0 in for x and then solve for y.
- 5. With this information, you can quickly graph the linear function. (3,0) (0,-9/5)
- 6. I hope this helps! Have a great day!