You have to plug in the numbers for x and then solve.
For example, when it says y=2x-4, you put -2 and the numbers below it for x and then solve.
(I don't want to give you the answer to everything and want to help you understand how to do it.)
Answer:
Step-by-step explanation:
The radical symbol when used for a square root means the non-negative square root. You cannot state that sqrt(x^2) = x because x may be negative. That is why you need use the absolute value symbol.
On the surface of the sea. My best guess because the surface is neither above or below
Answer:
- a) miles per gallon, gallons in tank
Step-by-step explanation:
All the options show functional relationship but the first one
a) miles per gallon, gallons in tank
- There is no direct relationship between these parameters as miles per gallon depends on the speed and the way of driving. This won't be a function when graphed.
b) length of shadows/time of day
- Shadow depends on the time of the day and its length wont repeat at different angles. This is a function.
c) temperature in F, temperature in C
- This is a function as each input will have a unique output.
d) number of employees, number of hours worked
- Hours of work depends on number of employees. This is a functional relationship.
