Answer:
yes because if you put a vertical line on it it only goes threw it once it is also called the <u>vertical line test</u>.
2 ways in solving this hope it helped
Whats the problem? just substitute. For example: 3x-5 if x=4 so what you do is this; 3(4)-5=7
Answer:
All real numbers is the answer
Step-by-step explanation:
Total distance = 200 miles
Time needed for the first 100 miles
= 100 ÷ 40 = 2.5 hours
Time needed for the second 100 miles
= 100 ÷ 50 = 2 hours
Total time = 2.5 + 2 = 4.5 hours
Average speed = 200 ÷ 4.5 hours = 44.4 miles per hour
