Graphing Using Intercepts

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Show your work for each problem.

1.
What is the x-intercept of a line?
1. a)The slope of the line
2. b)The point where the line crosses the x-axis
3. c)The midpoint of the line
4. d)The point where the line crosses the y-axis
2.
To find the y-intercept, which variable do you set equal to zero?
1. a)
2. b)Both and
3. c)
4. d)Neither
3.
Find the x-intercept of . Write only the x-coordinate.
4.
Find the y-intercept of . Write only the y-coordinate.
5.
Which ordered pair represents an x-intercept?
1. a)
2. b)
3. c)
4. d)
6.
Find the x-intercept of . Write only the x-coordinate.
7.
Find the y-intercept of . Write only the y-coordinate.
8.
Find the x-intercept and y-intercept of .
9.
A line has x-intercept and y-intercept . Through which quadrants does this line pass?
1. a)Quadrants I, III, and IV
2. b)Quadrants I and III
3. c)Quadrants I, II, and III
4. d)Quadrants II and IV
10.
Graph using intercepts. Find both intercepts first.
11.
Find the y-intercept of . Write only the y-coordinate.
12.
Graph using intercepts and verify by finding a third point.
13.
The equation passes through the origin. What is special about its intercepts?
1. a)It has no y-intercept
2. b)Both intercepts are at (0, 0)
3. c)It has no x-intercept
4. d)The intercepts are at (3, 0) and (0, 3)
14.
A company's profit equation is , where is the number of items sold and is profit in euros. Find the break-even point using intercepts.
15.
Find the x-intercept of . Write only the x-coordinate.
16.
The line has an x-intercept at . Find the value of .