Hola,
The equation of a straight line is y = mx + c , where y is y-coordinate, x is x-coordinate, m is the gradient, and c is where the line passes the y axis.
m = y2 - y1 / x2 - x1
choose two points on your line and work out m, then see if another point on the line fits the first formula
It is a plane area enclosed by five straight lines.
Straight lines.
you draw straight lines with a ruler
Assuming that you mean diagonal (not diagnol) lines, they are straight lines that join non-adjacent vertices in a polygon or polyhedron.
there are 5 straight lines
Straight lines that never cross are called parallel lines.
Straight
Despite Straight Lines was created in 1983.
Think about this: A straight angle makes 180 degrees, right? Straight lines, when measured by a compass, are also 180 degrees. So, yes, all straight angles are straight lines.
A straight edge or a ruler are used to construct straight lines.
Draw a straight line from opposite corners. Where the lines cross is the centre.
Not necessarily. The horizontal and diagonal lines are also straight lines.