Answer:
line of symmetry , x = 3
Step-by-step explanation:
Standard form of quadratic equation is y = ax^2 + bx + c, where a, b, and c equal all real numbers. You can use the formula x = -b / 2a to find the line of symmetry.

a = 1, b = -6, c = -16
Line of symmetry is ,

Answer:
7.9 X 10^3
standard form means it has to between 1 and 10

Equation of line passing through given points :
Let's proceed with two point form ~

Assume :




So, the equation of required line is : y = 3 ~
You will need to add all the dimensions together, also know as perimeter
Answer: 3/2a3
I can't properly write the answer sorry but it's the last one.