A(n) ?⎯⎯ modified question mark with under bar belowintersects two or more coplanar lines at distinct points.
A(n) angle symbol (°) or intersection symbol (+) intersects two or more coplanar lines at distinct points.
The symbol you are referring to is called a transversal. A transversal is a line that intersects two or more coplanar lines at distinct points.
The symbol you described, a modified question mark with an under bar below it (∩), represents the mathematical symbol for the intersection of sets or lines. In the context of your question, it signifies the intersection of two or more coplanar lines at distinct points.
To determine the intersection points of coplanar lines, you can follow these steps:
1. Identify the equations of the lines in question. For example, consider two lines with equations y = mx + b1 and y = nx + b2, where m and n represent the slopes, and b1 and b2 are the y-intercepts.
2. Set the equations equal to each other to find the x-coordinate of the intersection point. In this case, solve the equation mx + b1 = nx + b2 for x.
3. Once you find the x-coordinate, substitute it back into either equation to find the y-coordinate. Plug the value of x into either y = mx + b1 or y = nx + b2 to determine the y-coordinate of the intersection point.
4. Repeat these steps for any additional lines you have, using the intersection points from the previous pairs of lines as input for the next pair.
By calculating the intersection points for each pair of lines, you will be able to identify the distinct points where the lines intersect, represented by the symbol (∩).