Answer:
Range: {-8;-1;6}
Step-by-step explanation:
The domain of a function is the set of all the values for which the function is defined (x-axis).
The range of a function is the set of all the values that f takes (Y-axis).
To calculate the range we must observe what value the function takes when entering the values for which it is defined (the domain).
In this case, those values are:
{-1,0,1}
\(y= 7(-1)-1\\ y= -7-1\\ y=-8\)
\(y= 7(0)-1\\ y= -1\)
\(y= 7(1)-1\\ y= 7-1\\ y=6\)
Range: {-8;-1;6}
