400
Use your calculator to find all of the equations to this: X-values:1,2,3,4,5,6,7,8,9,10,11,12. Y-values: 1,3,4,6,9,10,12,8,5,6,7,13. Round to nearest thousandth for decimals.
Linear is y=.615x+3. Exponential is y=2.501(1.140)^x. Quadratic is y=-.105x^2+1.979x-.181.