I believe the answer is A, but I am not entirely sure. This problem is slightly confusing. <span />
A² + b² = c²
8² + x² = 16²
x² = 16² - 8²
x² = 192
x =√192
x =8√3
(Root symbol) and under that 3x. And then outside of the root symbol -2x
Answer:

Step-by-step explanation:
The equation of a linear function in a slope-intercept form is written as

where
m is the slope of the line
q is the y-intercept
We proceed as follows. First of all, we find the y-intercept, which is the value of y at which the line touches the y-axis.
From the graph, we see that this occurs at y = 4, therefore the y-intercept is

Now we have to find the slope. We do that by choosing two points along the line, with coordinates
and
and by using the equation

Here we take the two points:
(0,4)
(-8,0)
So the slope is

Therefore, the equation of the line is

X (the distance juan ran) • .75 (or 3/4) (the amount mario ran) = the distance mario ran