Hey there!
A function is a relation to numbers in which an input value as a specific output value.
a) Is a function. All x values go to specific y values. For domain, look at the x values. You go from 2 to 8. So, 2≤x≤8 (we can assume the line just goes this long since we are not given anymore information) For the range, we have the same thing. It goes from 5 to 8. 5≤y≤8
b) Is not a function. 1 cannot go to two y-values.
c) Is not a function. Does not pass vertical line test.
d) Is a function. Passes the vertical line test. For the domain on this one, it would be infinite, which you could represent as (-∞,∞) It is infinite because the line as two arrows that continue forever. For the range, it would be anything greater than 2. y≥2 or 2≤y
The question stated you only needed to find the domain and range for the functions, so you would just do it for a) and d).
I hope this helps!
~kaikers
Choice c 24 glad to help explanation: 5 raised to second power is 25 and 25-3 to the zero power is one bc anything to the zero power is one so the answer is 24 25-1 is 24
-18>=-6c
Divide both sides by -6 to get c by itself on one side. Also, flip the greater than sign to a less than or equal to sign because you divided by a negative number.
Final Answer: 3<= c
Answer:
Here we want to solve the equation:
First, we can divide both sides by 11^3 to get:
Now remember that:
(√x)^2 = √(x^2) = x
then if we apply this to our equation we get:
now we need to solve:
Then x = 2.002
Its a one over two chance that the piece of toast won't land on the side with butter
