ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


PSAT Math Diagnostic Videos 41 videos

PSAT 1.10 Math Diagnostic
256 Views

PSAT 1.10 Math Diagnostic. Which of the following is a factor of the expression?

PSAT 1.3 Math Diagnostic
245 Views

PSAT 1.3 Math Diagnostic. Which of the following most nearly represents the line of best fit?

PSAT 1.22 Math Diagnostic
175 Views

PSAT 1.22 Math Diagnostic. Which of the following functions f represents the total cost in dollars for a stay of x nights?

See All

PSAT 1.34 Math Diagnostic 186 Views


Share It!


Description:

PSAT 1.34 Math Diagnostic. Which of the following equations best represents circle K?

Language:
English Language

Transcript

00:00

Sorry And here's your smoked You sure Brought to you

00:04

by the circle k ranch and a dairy farm where

00:07

every animal is circle shape It makes milking cows a

00:11

real challenge All right check out this craft circle k

00:15

is shown in the coordinate plane above Went to the

00:17

following equations Best represents circle k and hear potential answer

00:22

Who were smelling blood gratings here already Well before we

00:25

do anything at all even put on our shoes Come

00:28

on now you missed your window We'll need to recall

00:30

that standard equation for us Circle for the forgetful and

00:33

absent minded Here it is x minus h squared plus

00:37

y minus k squared equals r squared That thing where

00:40

the center of the circle is point h k in

00:43

the radius is our we've been given the circle center

00:45

as indicated by this lovely blue dot here And it

00:48

looks like it's located at point three Negative six so

00:52

we can now plug in three for age and negative

00:54

Six Four k Watch the signs when we plug in

00:57

negative six for k we're taking why Minus negative six

01:01

which is the same as y plus six so that

01:03

gives us x minus three squares plus y plus six

01:07

squared equals r squared Okay we're making some headway here

01:10

Incidentally if you're wondering what's ahead weigh about eighty pounds

01:13

all right now we need some point on circle so

01:16

we can determine the radius Well if we go seven

01:19

along the x axis then down six boom there we

01:23

go Seven negative six is one such point now since

01:26

we know that the radius is the distance from the

01:28

centre to any point on the circle We can also

01:30

deduce that the radius is four because seven right here

01:34

minus three right here equals four Well now we have

01:37

everything we need right the equation for this particular circle

01:40

This is what it looks like X money three squared

01:42

plus why plus six forty full sixteen which is option

01:47

c our final answer All right we gotta run Looks 00:01:49.977 --> [endTime] like a few of our horses got loose

Related Videos

Secret Ingredients
391 Views

PSAT 1.3 Math Narrative Walkthrough. How many full packages of secret ingredient does the company have to buy to make one 50-gallon batch?

PSAT 1.1 Reading Diagnostic
1006 Views

PSAT 1.1 Reading Diagnostic. The main purpose of the first two paragraphs is to...what?

PSAT 2.2 Reading Diagnostic
379 Views

PSAT 2.2 Reading Diagnostic. What is the main rhetorical effect of this phrase in the second paragraph?

PSAT 1.3 Writing Diagnostic
282 Views

PSAT 1.3 Writing Diagnostic. To make the paragraph most logical, sentence 2 in the second paragraph should be placed...where?

PSAT 1.4 Writing Diagnostic
239 Views

PSAT 1.4 Writing Diagnostic. Which choice most effectively combines the two sentences in the underlined portion?