4. Which of the following functions has a rate of change that stays the same?
1 answer:
Answer:
Step-by-step explanation:
A linear function has a constant rate of change.
So all you need to do is to identify which of the given options is a linear function.
is a linear function and the rate of change is -4.
We can see this is a constant.
has a variable rate of change which is
also has a rate of change which is
also has a variable rate of change which is 2x
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Answer: a) 15 b)
Step-by-step explanation:
Let X be the number of days:
a)
For LESSONS:
Jordan does 10 / day ( 10*X)
Marco 5 / day ( 5*X)
Junyi 5 / day ( 5*X)
For TESTS:
Jordan does 5 / day ( 5*X)
Marco 10 / day ( 10*X)
Junyi 8 / day ( 8*X)
for each they need a total of 300
a) days for the lessons
b) days for the tests
so they need 15 days to finish both tasks
now if Junyi gets sick we just eliminate his contribution
a) days for the lessons
b) days for the tests
so in 20 days they will finish without him
If jordan works 10 hours a day, we just replace him with 10/24
a) days for the lessons
b) days for the tests
so at the end to complete both tasks they need 29.58 days
Step-by-step explanation:
Angle b + 100 = 180 (angles on the same straight line)
Angle c = Angle b (Vertically opposite angles)
= 80 deg