90-n=3n
90=4n
22.5=n
Final answer 22.5
14.
Step-by-step explanation:
6x+6=90 (being a straight line)
6x=90-6
6x=84
x= 84/6
x=14.
Looking at the graph, we can say that:
- It opens downward and has a maximum of 0.
- The axis of symmetry passes through the vertex (the maximum value in this case). So, the x-coordinate of the vertex is 4, and the axis of symmetry is:

- We conclude that the coordinates of the vertex are:

- The x-intercepts are defined as those points whose y-coordinate is 0. Similarly, the y-intercepts are those points of x-coordinate equal to 0. Looking at the graph, the vertex itself is the x-intercept, and y = -8 is the y-intercept.
Answer: I recommend using a site called "Desmos" it shows you where the points are. Hopefully, I helped you.
Answer:
it is upside down type it in the coments
Step-by-step explanation: