To determine the equation, first plot the 3 points on a coordinate plane. Then, use the slope formula to find the slope of each line. Next, use the point-slope formula to write the equations of the lines. Finally, solve the system of equations to find the intersection point, which is also the solution to the given equation.
The slope formula is m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on a line. To use it, simply plug in the coordinates of the two points and calculate the slope.
Yes, any 3 non-collinear points can be used to determine the equation of a line.
The point-slope formula is y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope of the line. To use it, simply plug in the coordinates of the point and the slope, and then rearrange the equation to the standard form, y = mx + b, where b is the y-intercept.
Yes, you can determine the equation of a line with only 2 points. However, it is recommended to have at least 3 points to ensure accuracy and to check for any inconsistencies.