Question 92497
All you have to do is to start with the equation you were given, replace every x with -5,
and do the calculations that result. Here we go:
.
Start with {{{f(x) = 1 - 3x}}}
.
Replace all the x's with -5:
.
{{{f(-5) = 1 - 3(-5)}}}
.
do the calculations:
.
{{{ f(-5) = 1 - (-15)}}}
.
remove the parentheses on the right side. Because the parentheses are preceded by a minus
sign, when you remove the parentheses you change the sign of the term inside. The equation
then becomes:
.
{{{f(-5)= 1 + 15 = 16}}}
.
So the answer you are looking for is:
.
{{{f(-5) = 16}}}
.
Hope this helps you to see how to do problems like these.