Evaluating functions means to substitute the values at every occurrence of x.
So, we have

You didn't specify where we should evaluate g(x).
Answer:
1/5
Step-by-step explanation:
Gradient is another word for slope. To find the gradient, we have to use a formula.
There is nothing to compare since both of the decimals are equal. The zero at the end doesn't mean anything.
Hope This Helps You!
Good Luck Studying :)
If you want to find the decimal value of a square root, you can use the 2 closest perfect squares to them.
Example
Approximate the value of sqrt20
Pick the 2 closest perfect squares, one before and one after 20:
16 and 25.
So, the square root of 20 has to be between 4 and 5.
Since 20 is closer to 16 than it is to 25,
We can estimate the decimal value of sqrt20 to be around 4.4