Which square root would be classified as rational √2, √16. √24, √40 which one of these numbers' square root be rational

Square root of 16 would be the only rational number since it is the only whole number.  

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.

Where is the picture