For making a scatter plot of the data set which would be the best scale and interval for the axis that represent the amount of fluorine?
a.2 to 10 with intervals of 1
b.4 to 10 with intervals of 2
c.0 to 8 with intervals of 0.2
d.0 to 8 with intervals of 4

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)

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get