Many numbers, when multiplied by

, are less than

. We can find an inequality for numbers

that are sufficient.
Clearly,

is the desired inequality. We divide by 7 to find that

determines working numbers.
Answer:
1
Step-by-step explanation:
There's a theorem that says "through 2 points it only cross one and only one line". Having this as our start point, we can guarantee that there's only one line that can be drawn through those points
Answer:
The line of symmetry is x = 3
Step-by-step explanation:
To find the line of symmetry in this case, use the base formula for vertex form.
y = a(x - h) + k
In this formula, h is the line of symmetry. In this case, h is 3.