Exercise 57 Page 162

To complete the table, we should calculate corresponding values of $y$ for the different values of $x.$ To do that, we have to substitute the value of $x$ into the equation $y=x-\frac{3}{4}$ and simplify. If we do this for the rest of the values of $x,$ we can complete the table.

$x$	$\text{-}2$	$\text{-}1$	$0$	$1$	$2$
Substitution	$\text{-}2-\frac{3}{4}$	$\text{-}1-\frac{3}{4}$	$0-\frac{3}{4}$	$1-\frac{3}{4}$	$2-\frac{3}{4}$
Write as Fraction	$\text{-}\frac{8}{4}-\frac{3}{4}$	$\text{-}\frac{4}{4}-\frac{3}{4}$	$0-\frac{3}{4}$	$\frac{4}{4}-\frac{3}{4}$	$\frac{8}{4}-\frac{3}{4}$
$y=x-\frac{3}{4}$	$\text{-}\frac{11}{4}$	$\text{-}\frac{7}{4}$	$\text{-}\frac{3}{4}$	$\frac{1}{4}$	$\frac{5}{4}$