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Linear Relationships x+4=y How many variables does the equation above have? _________________ What does x + 4 = y mean? It means that I can choose any number for x, then I add 4 to that number and I get the answer which is some number y. x is the independent variable. Why is “x” the independent variable? ____________________________ ___________________________________________________ y is the dependent variable. Make a table of values for the equation x + 4 = y Make a graph. Consider the equation 2 x + 4 = y What does 2 x + 4 = y mean? ____________________ ___________________________________________________ ___________________________________________________ Make a table of values for the equation. Make a graph. Hannah starts with $100 in the bank. She adds $20 at the end of each week. What are the two variables? _______________________ And _______________________ Which variables is the independent variable (causes the other variable to change)? ____________________ Which variable is the dependent variable? _________ Make a table of values for the equation. Make a graph. Connect the points to make a line. How many dollars will she have after 8 weeks? Amy starts with 40 chocolate chip cookies. She eats 5 cookies each day. What are the two variables? _______________________ And _______________________ Which variables is the independent variable (causes the other variable to change)? ____________________ Which variable is the dependent variable? _________ Make a table of values for the equation. Make a graph. Connect the points to make a line. How many cookies will she have after 6 days?