Answer:
Step-by-step explanation:
Only one of them has a < b in ax² + by² = c formula, making its graph horizontal
All the rest are vertical, see attached
Answer:
13.5
Step-by-step explanation:
Average rate of change=(f(2)-f(1))/1=-18/2^2-(-18))=13.5
Answer:
Range=highest - lowest
80-20=60
Similarly
Q1=N/4=15
Q2=60/2=30
Q3=3*60/4=45
Interquartile range=Q3-Q1=45-15=30
Try to solve with all the options,
B is the right answer.