Slope- intercept form of a linear equation:
y = mx + b;
where m is the slope and b the y - intercept.
• To find the slope:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]If we have points (-2,3) and (5,3); then:
[tex]m=\frac{3-3}{5+2}=0[/tex]The slope of the line is m = 0.
• Now, to find the y - intercept:
3 = (0)(5) + b
b = 3.
The y - intercept of the line is b = 3.
• Equation in slope - intercept form:
y = mx + b
y = (0)x + 3
y = 3
