Question

Write a rule for the linear function in the table

X f(x)
1 -7
2 -10
3 -13
4 -16

Answer 1

we can use slope , point formula
y-y1=m(x-x1)
m is a slope=(y2-y1)/(x2-x1)=(-10-(-7))/(2-1)=-3
for example, we take the point (1, -7)
y-(-7)=-3(x-1)
y+7=-3x+3
y=-3x-4