1. CHAPTER 4 REVIEW GAME RULES:
Each team has 8 small answer papers to write down the answer.
Only the chosen color can come up and give me the answer.
Each team has 2 minutes to find the answer and can come up at any given time to show the answer.
PRIZE: 2 Extra credits per person for the winning team

2. Answer: 𝑦−5=−2 𝑥−3 𝑜𝑟 𝑦−15=−2 𝑥+2 𝑜𝑟
Problem 1
Find the equation of the line that passes through (3, 5) and (-2, 15).
Answer: 𝑦−5=−2 𝑥−3 𝑜𝑟 𝑦−15=−2 𝑥+2 𝑜𝑟
𝑦=−2𝑥+11 𝑜𝑟 2𝑥+𝑦=11

3. Answer: 𝑦+ 2 3 =−4 𝑥− 1 2 𝑜𝑟 𝑦=−4𝑥+ 4 3 𝑜𝑟
Problem 2
Find the equation of the line that contains ( 1 2 ,− 2 3 ) with slope -4.
Answer: 𝑦+ 2 3 =−4 𝑥− 𝑜𝑟 𝑦=−4𝑥 𝑜𝑟
12𝑥+3𝑦=4

4. Answer: 28 𝑐ℎ𝑜𝑐𝑜𝑙𝑎𝑡𝑒 𝑏𝑎𝑟𝑠 𝑡𝑜 𝑏𝑟𝑒𝑎𝑘 𝑒𝑣𝑒𝑛
Problem 3
Paige sells chocolate bars for $0.90 each. She spends $25 on supplies. Let “m” be the amount of money she makes. Let “h” be the number of chocolate bars she sells. How many chocolate bars must Paige sell to break even?
Answer: 28 𝑐ℎ𝑜𝑐𝑜𝑙𝑎𝑡𝑒 𝑏𝑎𝑟𝑠 𝑡𝑜 𝑏𝑟𝑒𝑎𝑘 𝑒𝑣𝑒𝑛

5. Answer: intersecting because both have different slope
Problem 4
Identify the equations if they are parallel, intersecting, or identical. 4𝑥+𝑦=5 and x−2y=8
Answer: intersecting because both have different slope

6. Answer: identical because same slope and same y-intercept
Problem 5
Identify the equations if they are parallel, intersecting, or identical. 𝑦=− 3 2 𝑥−4 𝑎𝑛𝑑 3𝑥+2𝑦=−8
Answer: identical because same slope and same y-intercept

7. Problem 6 Answer: 8 𝑚𝑖𝑛𝑢𝑡𝑒𝑠
Wayne starts walking to school at the rate of 5 feet per minute. Five minute later, Elaine realizes that Wayne forgot his lunch money. If she runs at the rate of 10 ft/minute, how long will it take her to catch Wayne?
Answer: 8 𝑚𝑖𝑛𝑢𝑡𝑒𝑠

8. Problem 7
Brooke buys CDs for $2.50 each. Let “c” be the number of CDs Brooke buys. Let “s” be the amount she spends in dollars. Write an equation that represents the relationship between “c” and “s.”
Answer: 𝑠=2.50𝑐

9. Problem 8 What is the slope of the line with the equation −2𝑥−4𝑦=10?
Answer: −1 2