Math Problem Statement

Find the distance between the points (0, -2) and (-4, -10).

Solution

To find the distance between the points (0,2)(0, -2) and (4,10)(-4, -10), we use the distance formula:

d=(x2x1)2+(y2y1)2d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Here, the coordinates of the two points are:

  • (x1,y1)=(0,2)(x_1, y_1) = (0, -2)
  • (x2,y2)=(4,10)(x_2, y_2) = (-4, -10)

Now, applying the formula:

d=((4)0)2+((10)(2))2d = \sqrt{((-4) - 0)^2 + ((-10) - (-2))^2}

Let's calculate that step by step:

  1. (4)0=4(-4) - 0 = -4
  2. (10)(2)=10+2=8(-10) - (-2) = -10 + 2 = -8

So, the formula becomes:

d=(4)2+(8)2=16+64=80d = \sqrt{(-4)^2 + (-8)^2} = \sqrt{16 + 64} = \sqrt{80}

Now, simplify 80\sqrt{80}:

80=16×5=45\sqrt{80} = \sqrt{16 \times 5} = 4\sqrt{5}

Thus, the distance between the two points is:

d=45 unitsd = 4\sqrt{5} \text{ units}

Would you like more details or further clarification on any step?


Here are 5 related questions for practice:

  1. Find the distance between the points (1,3)(1, 3) and (4,1)(4, -1).
  2. Calculate the distance between (5,7)(-5, -7) and (3,2)(3, 2).
  3. Determine the length of the diagonal of a rectangle with vertices at (0,0)(0, 0) and (5,12)(5, 12).
  4. How do you calculate the distance between two points in three-dimensional space?
  5. What is the relationship between the distance formula and the Pythagorean theorem?

Tip: Always simplify the radical in distance calculations whenever possible for the most accurate expression.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Distance Formula

Formulas

d = √((x2 - x1)^2 + (y2 - y1)^2)

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 8-10