Find the missing values. Y = 2x − 1

Given the function $Y = 2x - 1$ and $x = -1$.
Substitute $x = -1$ into the equation:

$$Y = 2(-1) - 1$$ $$Y = -2 - 1$$ $$Y = -3$$

The value for 3.1 is $\boxed{\text{-3}}$.

Given the function $Y = 2x - 1$ and $x = 0$.
Substitute $x = 0$ into the equation:

$$Y = 2(0) - 1$$ $$Y = 0 - 1$$ $$Y = -1$$

The value for 3.2 is $\boxed{\text{-1}}$.

Given the function $Y = 2x - 1$ and $x = 9$.
Substitute $x = 9$ into the equation:

$$Y = 2(9) - 1$$ $$Y = 18 - 1$$ $$Y = 17$$

The value for 3.3 is $\boxed{\text{17}}$.

Given the function $Y = 2x - 1$ and $Y = 21$.
Substitute $Y = 21$ into the equation:

$$21 = 2x - 1$$

Add 1 to both sides:

$$21 + 1 = 2x$$ $$22 = 2x$$

Divide by 2:

$$x = \frac{22}{2}$$ $$x = 11$$

The value for 3.4 is $\boxed{\text{11}}$.

Given the function $Y = 2x - 1$ and $x = 15$.
Substitute $x = 15$ into the equation:

$$Y = 2(15) - 1$$ $$Y = 30 - 1$$ $$Y = 29$$

The value for 3.5 is $\boxed{\text{29}}$.