Question

Find the value of the expression $-4x$ for the given values of $x$:
$x=1,5,-6,\frac{3}{7}$

• A. $-4,-20,24,$ and $\frac{12}{7}$ respectively.
• B. $-\frac{12}{7},24,-20,$ and $44 respectively.

Answer 1

The correct option is A $-4,-20,24,$ and $\frac{12}{7}$ respectively.

Here the expression is $-4x$. For each input of $x$ the expression will produce an output by muliplying $-4$ to it.
Input ($x$) Output ($-4x$)

$1$	$(-4)\times 1=-4$
$5$	$(-4)\times 5=-20$
$-6$	$(-4)\times (-6)=24$
$\frac{3}{7}$	$(-4)\times \frac{3}{7}=-\frac{12}{7}$

$\therefore$ The outputs are $-4,-20,24,$ and $-\frac{12}{7}$ respectively.