If the points (2, 4), (5, k), and (8, 20) are on the same line, what is the value of k?

k = 12

Step-by-step explanation:

Calculate the slope m using the slope formula

m =

with (x₁, y₁ ) = (2, 4) and (x₂, y₂ ) = (8, 20)

m = = =

Repeat using (5, k) as one of the points and equate to

(x₁, y₁ ) = (2, 4) and (x₂, y₂ ) = (5, k) , then

m = = = ( cross- multiply )

3(k - 4) = 24 ( divide both sides by 3 )

k - 4 = 8 ( add 4 to both sides )

k = 12

the thermometer is precise but not accurate

step-by-step explanation:

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64