Question

Write the rule for the linear function. Remember a function rule is written using using f(x). X -10 0 10 y -1 1 3 ​

Answer 1

F(x) equals mx +b. Find slope (rise/run).
Rise: 3-1 equals 2
Run: 1-2 equals -1
This gives -2 as slope.
Pick a point to find b.
Use y=mx+b and (1,3). Y is same as f(x)
3=-2*1+b
5=b
Plug everything in: F(x) equals-2X plus 5
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