ANSWER
7 units left.
EXPLANATION
The parent function is

The transformation

shifts the graph of the function, a units to the left.
Therefore the transformation that describes how to translate the graph of
y=|x| to obtain y=|x+7| is 7 units left.
The third choice is correct
1. 7, 12, 13, 40, 88, 90, 95
Mean- 268.57 or 268.6
Median- 40
Mode- No mode because all the numbers occur once.
2. 62, 81, 103, 126, 144, 144
Mean- 110
Median- 114.5
Mode- 144
The vertex is in essence the turning point of the parabola y = x²<span> − 10x + 2
the x coordinate of the turning point = </span>

=

= 5
when x = 5, y = (5)² - 10(5) + 2
= -23
Thus coordinate or vertex is ( 5, -23)
The answer is : multiply 5