Answer: In summary, if y = mx + b, then m is the slope and b is the y-intercept (i.e., the value of y when x = 0). Often linear equations are written in standard form with integer coefficients (Ax + By = C). Such relationships must be converted into slope-intercept form (y = mx + b) for easy use on the graphing calculator. One other form of an equation for a line is called the point-slope form and is as follows: y - y1 = m(x - x1). The slope, m, is as defined above, x and y are our variables, and (x1, y1) is a point on the line.
Special Slopes
It is important to understand the difference between positive, negative, zero, and undefined slopes. In summary, if the slope is positive, y increases as x increases, and the function runs "uphill" (going left to right). If the slope is negative, y decreases as x increases and the function runs downhill. If the slope is zero, y does not change, thus is constant—a horizontal line. Vertical lines are problematic in that there is no change in x. Thus our formula is undefined due to division by zero. Some will term this condition infinite slope, but be aware that we can't tell if it is positive or negative infinity! Hence the rather confusing term no slope is also in common usage for this situation.
An equation of a line can be expressed as y = mx + b or y = ax + b or even y = a + bx. As we see, the regression line has a similar equation. There are a wide variety of reasons to pick one equation form over another and certain disciplines tend to pick one to the exclusion of the other. BE FLEXIBLE both on the order of the terms within the equation and on the symbols used for the coefficients! With the interdisciplinary nature of a lot of research these days, conflict between differing notations should be minimized.
Step-by-step explanation: Pls Brainliest :(
