What is the distance between (-8,5) and (-1,5)

7 units

Step-by-step explanation:

(see attached for reference)

given two points (x₁, y₁) and (x₂, y₂), the formula for distance between two points is given as

Distance, D = √(  (x₂-x₁)² + (y₂-y₁)²  )

in our case, we are given

(x₁, y₁) = (-8,5)

(x₂, y₂) = (-1,5)

simply substitute the values into the equation above:

D = √(  (x₂-x₁)² + (y₂-y₁)²  )

= √{  [ (-1)-(-8) ]² + (5-5)²  }

= √{  [ (-1 + 8) ]² + (0)²  }

= √[ (7) ² ]

= 7 units (answer)

d

step-by-step explanation:

78.59 is the mean

step-by-step explanation: