3. Joe solved the equation and justified each step as shown. Identify Joe’s error and fix his mistake.

Step Justification

3 + x/2 = 100 Given equation

x/2 = 7 Multiplication Property of Equality

x = 14 Subtraction Property of Equality

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

a .4y4

hope this !

its adding 5.5 each time

step-by-step explanation: