Always. Any equation can be put into slope intercept form. Take x+5y=16, for example. This would be changed into y=16/5 + x/5.
y=mx+b y0=mx0+b 5=3*2+b b=5-5=0 y=3x+0
When it is a line through the origin.
If the equation of a line is in the form ax + by + c = 0 then the slope of the line will be -a/b.
when it is in its most reduced form.
The straight line equation is: y = 2x
y = 2x + 1.
The equation of the line is of the form y = 3x + c where c is a constant. The point (4,9) is on the line, so substituting x=4, y=9 in the equation, 9 = 3*4 + c = 12 + c so c = -3 So the equation of the line is y = 3x - 3
y=mx+b y0=mx0+b 5=3*2+b b=5-5=0 y=3x+0
General form for a line equation is: y=mx+b.
There are several equations; sometimes one can be more appropriate, sometimes another, depending on what data is given. For example, an equation solved for "y", i.e. of the form y = mx + b directly shows you the line's slope (which is "m") and the y-intercept (which is "b"). On the other hand, a general form of an equation of a line is ax + by = c This form is able to represent vertical lines, which can't be expressed with the slope-intercept form. There are several other equations for a line as well.
When it is a line through the origin.
If the equation of a line is in the form ax + by + c = 0 then the slope of the line will be -a/b.
when it is in its most reduced form.
For a horizontal line, it is y= a value
Slope-intercept form
A horizontal line would be of the form y= (a number). There should be no 'x's involved in the equation.
The straight line equation is: y = 2x