Y=6x+5 is the equation. what is its gradient

Gradient is synonymous to slope.

y = 6x + 5 is an example of a slope-intercept form of a straight-line equationl.

The slope-intercept equation is like this:

y = mx + b

where : m = slope; b = "y-intercept"

y = 6x + 5

6 is the slope

5 is the y-intercept.

Since slope and gradient are synonymous, 6 is the gradient of the above equation.