Exam 3: Linear Equations With Two Variables

The model describes the amount of Cesium-137 remaining after t years. Which one of the following written statements best describes the behavior of Cesium-137?

The amount of student loan debt that you have can be estimated by the equation where D is student loan debt in dollars m months after you start paying off the debt. Graph this equation.

Using the following table find the percentage rate of change in f from 0 to 1.

There is a linear relationship between the number of inches n and the number of yards y. The following table lists some conversions between the number of yards and the number of inches. Find the equation of the line that describes that relationship.

Decide whether you would graph the equation by using the slope and y- intercept the x- and y -intercepts or by building a table of points to plot.

The percent rate of change for the increase in bees per day for time 0 to 2 days is 7.46%.

Determine whether the equation is linear. If it is linear put it into slope-intercept form.

Find the slope of the line that goes through the points and .

Use the graph to find the y- intercept.

The model describes the amount of a radioactive substance (in grams) remaining after t hours. Which one of the following written statements best describes this population?

Every line has a slope value.

Use the equation to create a table of nine or more points and graph them. Connect the points with a smooth curve. Clearly label and scale the axes.

Use the graph to find the equation of the line. Put the answer in form.

A certain region started with 187 wild coyotes. Due to drought the region had only 46 coyotes remaining after 6 months. Which of the following is the 6-month decay factor (rounded to the nearest hundredth)?

Graph the equation using the x- and y- intercepts. Clearly label and scale the intercepts. Graph this equation.

The data table represents hours you work h and your pay P . Is the graph of the equation linear or nonlinear?

For find a. b. c.

Determine the equation of the line that passes through the given points. Put the final answer in form. Points:

Use any two points from the table to calculate the slope of the line that passes through the points.

Graph the equation using the x- and y- intercepts. Clearly label and scale the intercepts. Graph this equation.