Question

r(x)=−x−7 when x=−2,0, and 5

Answer 1

Given,

The expression of the function,

$r(x)=-x-7$

The value of r(x) at x = -2 is,

$r(-2)=-(-2)-7=2-7=-5$

The value of r(x) at x = 0 is,

$r(0)=-(0)-7=0-7=-7$

The value of r(x) at x = 5 is,

$r(5)=-(5)-7=-5-7=-12$

Hence, the value of r(x) is -2, -7 and -12.