Can anyone help with this?
If t is a real number, what is the maximum possible valuef of the expression -t^2 + 8t - 4 - t^2 + 12t - 6?
First, simplify the expression to −2t2+20t−10
Now, recall that the vertex occurs at t=−b2a=−20−4=5
This means that if we substitute t=5 into the expression, we get the vertex.
Want to try it?