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Concept explainers
Graph the equation
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Answer to Problem 9PT
Graph by using the x and y intercepts. They are
Explanation of Solution
Given:
The equation:
Concept Used:
The x -intercepts are where the graph crosses the x -axis, and the y -intercepts are where the graph crosses the y -axis.
Then, algebraically,
- an x -intercept is a point on the graph where y is zero, and
- a y -intercept is a point on the graph where x is zero.
More specifically,
- an x -intercept is apoint in the equation where the y -value is zero, and
- a y -intercept is a point in the equation where the x -value is zero.
Calculation:
The equation:
We can graph the equation by using x and y − intercept method. First we find the x and y intercept from the equation and then plot the points on the grid and join then to complete the graph.
Find the x − intercept, plug in
Find the y − intercept, plug in
Graph the line
Thus, x and y intercepts are
Chapter 3 Solutions
Algebra 1
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