Answer:
The axis of symmetry is x = 6
Step-by-step explanation:
To find this, first find the two x-intercept values and then take the average. This will always be the line of symmetry.
x + 9 = 0
x = -9
x - 21 = 0
x = 21
Now take the average of these two numbers.
(-9 + 21)/2
12/2
6
Answer: multifly then divide
Step-by-step explanation:
Answer:
Simplify the radical by breaking the radicand up into a product of known factors.
20
Step-by-step explanation:
2x+6=1
-5+6=1
-5÷2=-2.5
x=-2.5