Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-4 Graphing a Function Rule - Practice and Problem-Solving Exercises: 17

Answer

The graph is shown below:
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Work Step by Step

Equation: y=9-2x ***Rearrange the equation so that the x variable is the first term in the equation. y=-2x+9 The general form of a linear equation is y=mx+b where m is the slope and b is the y-intercept. In the equation above the y-intercept, b, is +9 so start by plotting the point (0,9). In the equation above the slope, m, is -2 and since slope= $\frac{rise}{run}$ you go down 2 units and to the right one unit from each point starting from the y-intercept to get the final graph.
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