Math Blog Week 16

This week on math we learned about the equations of slopes.

There are 3 different equations for calculating the slope of a line: in the equation m represents the slope, y represents the y coordinate, x the x coordinate, and b the y-intercept.

The slope of a line is its so a whole number would be a fraction. The y-intercept is equal to y if x equals 0.

If the value of y equals 3, x equals 1 and the slope equals 4 we would have the equation . On a graph it would look like this:  from this graph we can tell that since the y-intercept is -1, b=-1 so our equation to determine y on the graph is .

General form is much less useful, general form is represented by where B and C are integers and A is a whole number. We can’t find the slope and equation from general form alone however if we convert it into the above form we can. If the equation is first we add 4y to both sides of the equation so we get then we divide the equation by 4 which is the coefficient of the y

The final equation is slope-point form which is represented as if the slope equals and the line goes through point (1, 4) then the equation will be