Final answer:
The distance between the points (2,4) and (-1,8) is 5 units.
Step-by-step explanation:
The distance between the points (2,4) and (-1,8) can be found using the distance formula. The distance formula is given by:
d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Plugging in the coordinates (2,4) and (-1,8) into the formula, we get:
d = sqrt((-1 - 2)^2 + (8 - 4)^2)
d = sqrt((-3)^2 + (4)^2)
d = sqrt(9 + 16)
d = sqrt(25)
d = 5
Therefore, the distance between the points (2,4) and (-1,8) is 5 units.