Question

ANSWER ASAP!! Find the distance between the points (2, 8) and (-1, 9).

A) Square root of 2

B) 2 square root of 3

C) Square root of 10

Answer 1

Answer:

C

Step-by-step explanation:

Calculate the distance (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (2, 8) and (x₂, y₂ ) = (- 1, 9)

d = $\sqrt{(-1-2)^2+(9-8)^2}$ = $\sqrt{(-3)^2+1^2}$ = $\sqrt{9+1}$ = $\sqrt{10}$ → C

Answer 2

Answer:

$\sqrt{10}$

Step-by-step explanation:

Using the distance formula:

$\sqrt{(x_b - x_a)^2 + (y_a - y_b)^2}$

Plugging the numbers in:

$\sqrt{(-1-2)^2 + (9 - 8)^2 }$

Simplify:

$\sqrt{9 + 1}$

Answer:

$\sqrt{10}$

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Amanda