Exam 3: Linear Equations With Two Variables

A region in the Arizona desert has 351 rabbits and after 3 months there are 896 rabbits. Assuming that the number of rabbits grows exponentially which of the following is the 3-month growth factor (rounded to the nearest tenth)?

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

Decide whether the lines are parallel perpendicular or neither. and

The graph of a function that models exponential decay is shown. What is the initial population?

For the given input-output table complete the column to write coordinates for points. The equation is . x y 0 5 10

For the function name the domain and name the range.

For find a. b. c.

The half-life of Radon-222 is 3.8 days. A 46-gram sample of Radon-222 is monitored for one day. How many grams of Radon-222 are left after 16 hours (rounded to the nearest hundredths)?

Jessica invested $10700 into an account with an interest rate of 4.7% per year compounded quarterly. How much money will be in the account after 1 month (rounded to the nearest hundredth)?

Is the graph of the equation linear or nonlinear?

Determine the equation of the line that passes through the given points by using the point-slope form. Put the final answer in form. and point

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

The amount of caffeine (in milligrams) left in an adult body t hours after drinking a 16 oz. coke is modeled by . What is the initial population?

Graph the equation using the slope and y- intercept. Graph at least three points. Clearly label and scale the axes.

Find the x -intercept and the y- intercept of the equation .

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

Find the slope of the line given in the graph.

The graph of the equation is which of the following?

Which one of the following functions is described by the graph?

Zachary invested $4000 into an account with an interest rate of 5.3% each year compounded monthly. How much money will be in the account after 1 month (rounded to the nearest hundredth)?