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8. Consider the following graph. What is the domain of a function?
9. Consider the following graph. What is the range of a function?
10. Consider the following graph. What is the minimum and maximum
x-values of a function.
11. In a coordinate plane the points (2 4) and (3 -1) are on a line. Which
of the following must be true?
12. Which of the following is an equation of a line that passes through
the point (0 5) and has a negative slope?
13. A plumber charges customers $48 for each hour worked plus an
additional $9 for travel. If h represents the number of hours worked,
which of the following expressions could be used to calculate the
plumber's total charge in dollars?
14. The number of gallons of water, y , in a tank after x hours may be
modelled by the linear equation y=880-50x. Which of the following
statements about the tank is true?
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