This week, we learned about the forms of the function.
there is Slope and Y-intercept form, General form, and point and slope form.
First. Slope and Y- intercept form.
– Y=ax+b a is a slope, and b is an Y-intercept. This form is very useful form to draw a line.
Second. point slope form.
– m(x-x2)=y-y2 m is a slope, and x2 and y2 is a x and y value of witch line passing through (passing point). This is also very useful to draw the graph.
Finally. General form.
– ax+by+c=0. This form is pretty useless because we can’t find any information in it.
but it’s good to determine the x and y intercepts.