Exam 3: Paired Data and Graphing Ordered Pairs

Find y if the line through (2, 2) and (4, y ) has a slope of 3.

For the equation complete the ordered pairs. ( _____ , 6 ), ( _____ , -2 ), ( _____ , 0 )

Solve the system of linear equations by the elimination method.

In the graph below, name the linear inequality in two variables that is represented by the shaded region.

A square with sides 7 units long is shown below. One corner is the point (1, -2). Find the other three corners. A = __________ B = __________ C = __________

Graph the inequality.

Solve the system by substitution. Substitute the expression in the second equation into the first equation and solve. If the system is dependent or inconsistent , or if there is no solution , indicate this.

Find three solutions to the following equation, and then graph the solution set.

Solve the system by eliminating the variable. If the system is dependent or inconsistent , indicate this.

You have two cars. The first car travels an average of 11 miles on a gallon of gasoline, and the second averages 21 miles per gallon. Suppose you can afford to buy up to 45 gallons of gasoline this month. If the first car is driven x miles this month, and the second car is driven y miles this month, shade the region in the first quadrant that gives all the possible values of x and y that will keep you from buying more than 45 gallons of gasoline this month.

Graph the solution set for the equation.

Graph the ordered pair.

Solve the system of linear equations by the elimination method. If the system is dependent or inconsistent , indicate this.

For the equation complete the ordered pairs. ( 0, _____ ), ( 1, _____ ), ( _____ , 11 )

For the equation complete the ordered pair .

Graph the ordered pair.

For the equation complete the ordered pairs. ( _____ , 27 ), ( 0, _____ ), ( -2, _____ )

Multiply both sides of the bottom equation by 100 and then solve by the elimination method. If the system is dependent or inconsistent , indicate this.

Jane takes a job at the local Marcy s department store. Her job pays $8.00 per hour. The graph shows how much Jane earns for working from 0 to 40 hours in a week. If her check for one week is $280, how many hours did she work? __________ hours She works 25 hours one week, but her paycheck before deductions are subtracted out is for $200. Is this correct? Answer yes or no . __________

For the following equation, complete the given table.