Answer:

Step-by-step explanation:
Hi there!

This equation is written in the form
. First, use partial factoring:

For x^2-x, the <em>b</em> value is -1 in
. To complete the square, take the square of half of 1 and add it in the parentheses as the <em>c</em> value:

However, when adding values to one side of the equation, we must to the same to the other side:

Complete the square:

Move 20 to the other side

I hope this helps!
Expanded form: 9.00+0.70+0.06
Word form: Nine and seventy-six hundredths
Round it to 10: 10
Rounded to the nearest tenth: 9.80
Answer:
The relation is not a function.
Step-by-step explanation:
In order for a relation to be a function, there can only be one output for every x value. If you were to graph this equation, it would not pass the vertical line test, as 4 has two outputs (0 and 1) and 6 has two outputs (6 and 4).
Answer:
Step-by-step explanation: