Question

The equation $y $ = $mx + b$ for a graph of y versus x indicates

Answer 1

$y=mx+ b$

represents a straight line.

where

m is slope of the line and b is y-intercept

$m= \frac{Change in y}{Change in x}$

$b= Value of y, when x=0$

Tips/Tricks for easy working

To find the slope m,  use the figure,

$m =\frac{Rise}{Run}$

To find positive or negative slope, we can use the wordplay

Going from left-to-right, the cyclist has to push on a positive slope.