SOLUTION: Please help my daughter with this problem given by her teacher she is in 8th grade. She has completed the whole worksheet with the help of a friend but he could not figure this one

Question 157939: Please help my daughter with this problem given by her teacher she is in 8th grade. She has completed the whole worksheet with the help of a friend but he could not figure this one out.
Explain how you know that the following are linear relationships?
graph
x y
_________
2 20
3 18
4 16
5 14 y=4x+1

a.) The graph?
b.) The table?
c.) The equation?
Answer by atique.ah(27) (Show Source): You can put this solution on YOUR website!
1)Graph: If the graph is a straight line "LINEAR"
2)EQUATION: If there is no power of x,y or any variable, "LINEAR"
3)Table: Draw a graph and use (1)
I hope this helps.
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