Graphing
Solve by Graphing
y=-2x-2
y = (-2/3)x + 2
What is (-3,4)
Solve the system by Elimination
−5x + 10y = −10
5x − 4y = 4
What is (0,-1)
Solve by substitution
x − 3y = 10
8x − 3y = −4
What is (-2, -4)
Wilbur and Ndiba each improved their yards by planting rose bushes and geraniums. They bought their supplies from the same store. Wilbur spent $66 on 2 rose bushes and 8 geraniums. Ndiba spent $108 on 2 rose bushes and 14 geraniums. Find the cost of one rose bush and the cost of one geranium.
What is rose bush $5, geranium $7.
Solve by graphing
y=(1/4)x -2
y = -x+3
What is (4,-1)
Solve this by Elimination
−x + 4y = −25
x + y = −15
What is (-7, -8)
Solve by substitution:
−5x + 4y = −3
−x + y = 1
What is (7,8)
The senior classes at High School A and High School B planned separate trips to New York City.The senior class at High School A rented and filled 6 vans and 1 bus with 98 students. High School B rented and filled 6 vans and 2 buses with 136 students. Each van and each bus carried the same number of students. Find the number of students in each van and in each bus.
What is Van:10, Bus :38
Solve by graphing
y=(1/2)x + 3
y = (-1/2)x - 1
What is (-4,1)
Solve by Elimination
6x - 8y = -16
12x - 9y = -18
What is (0,2)
Solve by substitution
4x - 7y = 11
y = -3x + 2
What is (1, -1)
The school that Adam goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 10 adult tickets and 12 student tickets for a total of $202. The school took in $206 on the second day by selling 14 adult tickets and 4 student tickets. What is the price each of one adult ticket and one student ticket?
What is adult ticket :$13, student ticket :$6
Solve by graphing:
x - y = -4
2x +y=1
What is (-1,3)
Solve by elimination
-3x - y = 7
-9x - 3y = 21
Infinite Number of Solutions
Solve by substitution:
3x + 3y = -12
y = -3x - 4
What is (0,-4)
Chelsea and Amanda are selling cheesecakes for a school fundraiser. Customers can buy pecan cheesecakes and chocolate marble cheesecakes. Chelsea sold 3 pecan cheesecakes and 6 chocolate marble cheesecakes for a total of $129. Amanda sold 6 pecan cheesecakes and 11 chocolate marble cheesecakes for a total of $242. What is the cost each of one pecan cheesecake and one chocolate marble cheesecake?
pecan cheesecake $11, Chocolate Marble Cheesecake $16.
Solve by graphing:
x + 2y = 4
7x + 4y = -12
What is (-4,4)
-2x - 2y = 14
-5x + 10y = -25
What is (-3,-4)
Solve by substitution
18x + 3y = -39
y = -6x - 13
What is Infinite Number of Solutions
Matt and Jane each improved their yards by planting grass sod and ivy. They bought their supplies from the same store. Matt spent $70 on 2 ft² of grass sod and 6 pots of ivy. Jane spent$74 on 4 ft² of grass sod and 6 pots of ivy. Find the cost of one ft² of grass sod and the cost of one pot of ivy.
What is :
Ft2 of grass sod: $2. Pot of Ivy: $11