Quiz 1: Chapter 1

Which of the following represents the domain of the function ?

Table A x 5 6 7 4 9 y -9 -5 -7 6 4 Table B x 4 7 3 15 8 y -4 -1 4 3 3 Usa Table B to find y = f(4).

Does  describe y as a function of x?

Table A x 5 6 7 4 9 y 4 -5 -7 6 4 Table B x 4 7 3 15 8 y -4 -1 4 3 3 Does Table A describe x as function of y? 

One line passes through the points (-12, 16) and (-1, 38), and a second line has equation 2y + x = 23. Are the line parallel, perpendicular, or neither?

Which of the following represents the domain of the function ?

Write the equation that passes through (5, -3) and is parallel to the line with equation 2x + y = -3.

For the function , compute the average rate of change between x = -1 and x = 2.

The average salary of a classroom teacher in the United States is given by f(t) = 982.06t + 32,903.77, where t is the number of years from 1990. What was the average salary in 2000?

The equation of the line that fits the data points in the table is f(a) = 0.017924A + 0.01. Use the equation to find f(28000).

A company has revenue given by R(x) =564x dollars and total cost given by C(x) = 40,000 + 64x dollars, where x is the number of units poroduced and sold. Write the profit function.

For the function , find .

A company has determined that its profit for product can be described by a linear function. The profit from the production and sale of 150 units is $455, and the profit from 250 units is $895. Write the equation of the profit function P(x) for this product.

Whice of the following equations is the point-slope form for a linear equation?

Which of the following graphs represents the function ?