## anonymous one year ago How can the graph be used to predict the output (y-value) associated with the input of 3 1/2? Rule: y = 2x + 1 Graph Input: -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6 Output: -11, -9, -7, -5, -3, -1, 1, 3, 5, 7, 9, 11, 13

1. anonymous

you can substitute 3 1/2 for x in the equation from the rule $y=2\left( 3\frac{ 1 }{ 2 } \right)+1$

2. anonymous

or you can look at the table. $$3\frac{1}{2}$$ is halfway between input-values 3 and 4. The corresponding output-value will be halfway between 7 and 9.