Answer:
That distance is 5 units.
Step-by-step explanation:
There are several very similar forms for the distance formula.
One is d = √[ (x2 - x1)^2 + (y2 - y1)^2 ].
x1 and x2 are the two given x values, which in this case are 1 and 4.
Then we have: d = √[ (4 - 1)^2 + (-1 - 3)^2 ]
or d = √[ (3)^2 + (-4)^2 ]
or d = √(9 + 16) = 5
