If the first term of the function is negative then the parabola will open down and it has a maximum value.
If the first term of the function is positive then the parabola will open up and it has a minimum value.
In the case of your example the parabola will open down and will have a maximum value.
hope this helps :)
Answer:
21
Step-by-step explanation:
90+15=105
105÷5=21
Answer:
3
Step-by-step explanation:
It would be y=4x-3 because -11 show that it went down 11 units. So if it is going to go up 8 units, -11+8 is -3.