Answer:
A = h b/2
Step-by-step explanation:
I am finding the answer right now but there is a website that you can use for math that really helps. It's called Desmos.
This is a parabola, meaning the equation is a quadratic, so it has 2 roots or x-intercepts, keeping in mind that vertex will lie half-way between those intercepts.
so what's the x-value halfway between -3 and 7? yeap, you guessed it, 2.
so the axis of symmetry for this vertical parabola will be at x = 2.
Answer:
72
Step-by-step explanation:
The greatest number in this set is 83
The smallest number is 11
We subtract the greatest from the smallest number in a set to find the range
83-11=72