3) 4 2 5 6 x 3 1 1 7 y B) To determine if an equation is a function, First write it in the form = a y quantity with the variable Consider what happens for each input is there only x. x, 1 output ? y Are these equations functions? 1) 2) 3) 4) 5) 6) C If a graph passes the it is a function. line ‘vertical test’, Vertical Line Test: If every vertical line intersects the graph of a relation only once, then the relation is a function. Are these graphs functions? 1) 2) 3) 4) 5)
3) x 4 2 5 6 y 3 1 1 7 B) To determine if an equation is a function, First write it in the form y = a quantity with the variable x. Consider what happens for each input x, is there only 1 output y ? Are these equations functions? 1) 2) 3) 4) 5) 6) C If a graph passes the ‘vertical line test’, it is a function. Vertical Line Test: If every vertical line intersects the graph of a relation only once, then the relation is a function. Are these graphs functions? 1) 2) 3) 4) 5)