I don't think I put the numbers in very well, but the numbers are:
-2 = 9
-1 = 4
0 = -1
1 = -6
2 = -11
Find the function rule.
x | -2 | -1 | 0 | 1 | 2
y | 9 | 4 | -1 | -6 | -11
I need to show my work, but I'm not sure what the function rule is. Can someone explain it to me?
3 answers
y decreases by 5 as x increases by 1 ... the slope of the line is -5
y = -5 x + b ... plug in one of the points to find b
y = -5 x + b ... plug in one of the points to find b
whats b?