If √6 is the geometric mean between 6 and another number, then the number is

To find the geometric mean of 2 numbers, multiply them and take the square root

one number is x
the other is 6
the mean is√6

so
6 times x=6x
√(6x)=√6
what is x?
square both sides
6x=6
divide both sides by 6
x=1

the other number is 1

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.

The graph isn’t that clear