Answer:
Step-by-step explanation:
Given
Required:
Find
Replace f(x) with y
Swap both variables
Make y the subject
Replace y with f-1(x)
(-1,-2) would result in a relation that is no longer a function.
In the table, there's already x = -1 and y = -4. Function only gives a single y-value with x-value. If a single x-value gives two y-values then it'd not be Function.
If we add (-1,-2) in the table. The domain will be repetitive. Basically, we already have (-1,-4) and if we add (-1,-2) in the table, a single x-value will give TWO y-values which is not a function.
Answer:
22.1875 (23 full days)
Step-by-step explanation:
142 * 2 = 284
284 / 6.4 = 44.375
44.375 / 2 = 22.1875
23 full days to get the rate to double
i hope i did this correctly
Answer:
slope: -1/2
Y-intercept: -1
Step-by-step explanation:
Get Y by itself by subtracting x on both sides
2y= -x -2
Now divide both sides by 2 to cancel the two connected to the y:
Y = -1/2x -2/2
So y= -1/2x -1
Y=mx+b so m is the slope and b represents the y-intercept