Question 884228
I'm assuming you mean {{{F(x)=-3x+1}}}.
Pick values of x and put them into the formula to calculate the values.
{{{x=-1}}}, {{{F(-1)=-3(-1)+1=3+1=4}}}
{{{x=0}}}, {{{F(0)=-3(0)+1=0+1=1}}}
{{{x=1}}}, {{{F(1)=-3(1)+1=-3+1=-2}}}
Keep going until you have as many values as you want.