In this discussion assignment, post your answers to the following questions. To help you figure out the answers, look at the graphs of the different equations that you’ve studied in this unit.

When a parabola opens upward, we call the y-value of the vertex the minimum value of the function. Why do you think we call it the minimum value?
When a parabola opens downward, we call the y-value of the vertex the maximum value of the function. Why do you think we call it the maximum value?
Pick out any quadratic equation from the lessons you’ve studied so far. Type the equation in your post

Question

In this discussion assignment, post your answers to the following questions. To help you figure out the answers, look at the graphs of the different equations that you’ve studied in this unit. 

When a parabola opens upward, we call the y-value of the vertex the minimum value of the function.  Why do you think we call it the minimum value? 
When a parabola opens downward, we call the y-value of the vertex the maximum value of the function.  Why do you think we call it the maximum value? 
Pick out any quadratic equation from the lessons you’ve studied so far.  Type the equation in your post

anonymous · Answer

because there is no other value less than that y which that parabola can take
when parabola opens downward
there would be no value greater than that y which the parabola can take. so its the maximum
y=x^2+2x+1. it opens upward

anonymous · Answer

Ok