9:20 LTE Take quiz Exit Question 1 20 pts The first step in solving a linear system using the substitution method is isolate either variable isolate the x isolate the y add the equations together Question 2 20 pts Solve the system of equations using substitution. - 4x + 4y = 8 y= -2x - 10 (4, -18) (-4,-2) . 9:20 LTE Take quiz Exit D Question 3 20 pts Solve the following system using substitution. 6x + 3y = - 12 y=-2x-6 (2,0) no solution o infinitely many solutions (3,-12) Question 4 20 pts Find the y-coordinate in the system below. y + 3x = -21 x=3y +3 9:20 LTE Take quiz Exit Question 5 20 pts Two cyclists are competing in a 10 mile time trial. The older cyclist, who rides at a speed of 22 mph, is given a 1 mile head start. The younger cyclist rides at a speed of 25 mph. Let x represent time in hours and y represent distance in miles. Which of the following system of equations represents this situation. O v= 25x y=22x + 1 OV=25x y= 22 + x O v= 25 y= 22x + 1 O v= 25x + 1 y=22x Not saved Submit quiz Time running: Hide Attempt due: 13 Oct at 22.50 9:27 LTE Take quiz Exit Question 1 20 pts Select the correct graph for the inequality y> - 2x-3. A) B) C ) D) B ОА ОС D Question 2 20 pts 9:28 LTE Take quiz Exit D Question 3 20 pts Which system of inequalities describes the graph below. 2 4 T OV> 3x y 3x y< - 2x + 4 Question 4 20 pts 9:28 LTE Take quiz Exit D Question 4 20 pts Which of the following is not a solution? 10 В 6 4 2 2 -10 8 -4 -2 2. 4 6 B 10 Á -4 -6 -8 - 10 O (6,2) (4,0) (0,-1) 0 (0,3) D Question 5 20 pts 9:28 LTE Take quiz Exit D Question 5 20 pts Which system of inequalities describes this scenario? Carlos works at a movie theater selling tickets. The theater has 300 seats and charges $7.50 for adults and and $5.50 for children. The theater expects to make at least $2,000 for each showing. O x+y = 300 7.5x +5.5y2 2000 O x +y 300 7.5x +5.5y > 2000 O x + y 2000 7.5x +5.5y 300 Ox+y = 300 7.5x +5.5y s 2000 Saved at 9:28 Submit quiz 10:14 nil LTE Take quiz Exit TEST 2 Solving Systems of Equations and Inequalities AA Started: 27 Oct at 10:13 Quiz instructions You have 2 attempts and 50 minutes each attempt. The higher of the 2 scores will be kept. D Question 1 6 pts Determine if the point (-1, 2) is a solution to the linear system given. -2x - y = 0 5x - 5y= - 15 True False Question 2 8 pts Solve the system using the method of your 10:14 nil LTE Take quiz Exit True False Question 2 8 pts Solve the system using the method of your choice. y= -x-1 y=x-5 O Infinitely Many Solution (2, -3) (-3, 2) No Solution Question 3 8 pts Solve the system by substitution. (2x + 3y = 6 10:14 nil LTE Take quiz Exit O No Solution D Question 3 8 pts Solve the system by substitution. 2x + 3y = 6 y=2x-6 O Infinitely Many Solutions (0, 3) (3, 0) O No Solution Question 4 6 pts Solve the system. What is the value of y? 10:14 nil LTE Take quiz Exit D Question 5 6 pts At the Fort Bend County Fair, you have $30 to spend on food. Turkey legs cost $6 and corn on the cob costs $4. You want to buy at least 6 items to share with your friends. Which system of inequalities can you use to determine how many turkey legs and corn on the cob you can order with the money that you have? oſt+cs5 6t+40 > 30 Ot+c26 6t+40330 O / 6t+4026 t+C530 0 4t +6C> 6 It+C
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