Chapter 4: Q56. (page 274)
Graph each function. State the domain and range.
Short Answer
The domain is all real numbers and the range is .
Chapter 4: Q56. (page 274)
Graph each function. State the domain and range.
The domain is all real numbers and the range is .
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Get started for freeThe table shows the relationship between years of experience and teacher salary.
Years Experience | 1 | 5 | 10 | 15 | 20 |
Salary (thousands of dollars) | 28 | 31 | 42 | 49 | 64 |
a. Write an equation for the best-fit line.
b. Find the correlation coefficient and explain what it tells us about the relationship between experience and salary.
In 2000, a camp had 450 campers. Five years later, the number of campers rose to 750. Write a linear equation that represents the number of campers that attend camp.
Write the given equation of line in slope-intercept form.
Read each question. Then fill in the correct answer on the answer document provided by your teacher or on a sheet of paper.
If the graph of a line has a positive slope and a negative-intercept, what happens to the–intercept if the slope and the–intercept are doubled?
F The–intercept becomes four times as great.
G The–intercept becomes twice as great.
H The–intercept becomes one-fourth as great.
J The–intercept remains the same.
The table shows ticket sales during the first week. Write an equation of the regression line. Then estimate the daily ticket sales on the 15th day after the movie opens.
Days Since Movie Opened | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Daily Ticket Sales () | 85 | 92 | 89 | 78 | 65 | 68 | 55 |
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