1. The slope intercept form is y=mx+b. m=the slope and b=the y-intercept 2. You can tell if it is a function or not because the x values can never repeat if it is a function. 3. y=1m+4 because the slope is 1 and y-intercept is 4 though you would really write it as y=m+4.
The slope-intercept form<span> is simply the way of writing the equation of a line so that the </span>slope<span> </span><span>Often, this </span>form<span> is called y = mx + b </span>form<span>.</span>