MATH SOLVE

3 months ago

Q:
# A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

Accepted Solution

A:

A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

28-14

Find the slope, m: m = ------------ = 14/2 = 7

4-2

Now find the equation of this line by using the point-slope equation:

y-28 = (7)(x-4)

You could change this to point-slope form: y = 28 + 7(x-4), or y = 7x

28-14

Find the slope, m: m = ------------ = 14/2 = 7

4-2

Now find the equation of this line by using the point-slope equation:

y-28 = (7)(x-4)

You could change this to point-slope form: y = 28 + 7(x-4), or y = 7x