how to find the maximum value of y in a graph?

Jedidiahlot

5 years ago

the point where y is greatest

VTPETERS2002

5 years ago

If you have the graph, or can draw the graph, the maximum is just the y value at the vertex of the graph. If you are unable to draw a graph, there are formulas you can use to find the maximum. If you are given the formula y = ax2 + bx + c, then you can find the maximum value using the formula max = c - (b2 / 4a).

Semooretj

5 years ago

In a quadratic equation in the form ax^2 + bx + c
put it in the completed square form A[(x+0.5b)2 – 0.25b2 + c] and the constant c is the maximum value of y