Solved by pluggable solver: Distance Between 2 points |
The distance formula is |
Looking into coordinates, you should understand that the line is HORIZONTAL, parallel x-axis (since y = const = 5). Hence, the length of the segment between the endpoints is the difference of x-coordinates -3 - (-12) = -3 + 12 = 9 units. ANSWER
Same y-coordinate indicates a 0 (zero) slope.
Therefore, you just need to SUBTRACT the SMALLER x-coordinate from the LARGER x-coordinate, thereby getting:
That's ALL!!