Originally Posted by

**surffan** So I was given the age of a car and the value at each year, with this information I'm suppose to develope a linear, exponential and quadratic equation.

__Age Value__

1 14000

2 9100

3 6200

4 4000

3 3000

I developed the linear equation y= -2750x+17500 by calculating the slope and drawing a line through the points on the graph to get the y intercept. I'm having trouble with the other two forms, how can I draw a linear equation that will match my graph? And for quadratic I know that the vertex is going to be the same as the y intercept. If someone can please help me understand how to form these equations I would really appreciate it.

Thank you