13JUL21

Given the equation of a line, to find its slope, compare the given equation to y=mx+c. Whatever is the coefficient of x, it is the slope of the line.

In the given equation, if the LHS is not y, you have to modify the given equation and bring it into the form y=mx+c.

Given the equation of a line, to find its y-intercept, compare the given equation to y=mx+c. Whatever is the constant term, it is the y-intercept made by the line.

Alternatively, we can substitute 0 for x, because any point on the Y-Axis will have its x-coordinate as zero.

Given the equation of a line, to find its x-intercept, we can substitute 0 for y, because any point on the X-Axis will have its y-coordinate as zero.

y=mx+c is called the slope-intercept form of a straight line.

+a in the LHS becomes –a in the RHS.

–a in the LHS becomes +a in the RHS.

*a in the LHS becomes /a in the RHS.

/a in the LHS becomes *a in the RHS.


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