Distance between A (2, -1) and (2,a) is 4 units. Find the value of a where a is positive.

a = 3

Step-by-step explanation:

Calculate the distance d using the distance formula and equate to 4

d =

with (x₁, y₁ ) = (2, - 1) and (x₂, y₂ ) = (2, a)

d = = = = a + 1 then

a + 1 = 4 ( subtract 1 from both sides )

a = 3

did you get the answer yet?

step-by-step explanation:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!