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Artyom0805 [142]
2 years ago
14

Find the distance between the two points in simplest radical form. (1, -7) and (7,0)

Mathematics
2 answers:
denis23 [38]2 years ago
5 0

Answer:

The <u>distance</u> <em>between</em> the two given points is equal to √85.

Step-by-step explanation:

Let's recall what the distance formula is:

\displaystyle \huge\math\boxed{d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2} }

We are defined our two points as:

  • (x₁, y₁) → (1, -7)
  • (x₂, y₂) → (7, 0)

We can rewrite this into our different "variables":

  • x₁ = 1
  • y₁ = -7
  • x₂ = 7
  • y₂ = 0

Now given our distance formula and our variables, we can find the distance between the two points:

\displaystyle\huge\begin{aligned}d & = \sqrt{(1 - 7)^2 + (7 - 0)^2} \\& = \sqrt{(-6)^2 + (7)^2} \\& = \sqrt{36 + 49} \\& = \math\boxed{\sqrt{85}} \\\end{aligned}

∴ since the radical is already in its simplest form, our distance between the two points is equal to √85.

Hope this helps!

lina2011 [118]2 years ago
5 0

\\ \qquad{\rule{200pt}{3pt}}

<h3>✞︎ <u>Solution</u> ✞︎</h3>

➪ In order to calculate the required distance use the the distance formula

\displaystyle{\implies\:\underline{\boxed{ \purple{\bf\:\bigg \lgroup\: \: d = \sqrt{(x_2 - x_1 {)}^{2} \:  +  \: ( y_2 - y_1 {)}^{2}  \:} \:  \bigg\rgroup} \: }}}

❒ <u>Where</u> ❒

\rm \longrightarrow (x_1 ,y_1) \: and \:(x_2,y_2) are 2 coordinate points.

❖ The <u>2 points</u> given here are

  • ➪ ( 1 , -7 )

<u>and</u>

  • ➪ ( 7, 0 )

❖ <u>Assume that</u> ,❖

\rm \longrightarrow (x_1 ,y_1)  =( 1 ,-7)   \:  \\  \rm \: and  \\ \rm\longrightarrow \:(x_2,y_2) = (7,0)

: :  \rm \implies \: d =  \sqrt{(7 -1 {)}^{2}   +  {(0 -( - 7)) }^{2} }

: :  \rm \implies \: d =  \sqrt{(6 {)}^{2}   +  {(7)}^{2} }

: :  \rm \implies \: d =  \sqrt{(36 {)}  +  {(49)}}

: :  \bf \implies \: d =  \sqrt{85} \longleftarrow \rm in \: radical \: form

\\ \qquad{\rule{200pt}{3pt}}

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