you don't even need the equation. 14-4=10, aka the diameter. therefore, the radius is 5
@InteligentToast11 күн бұрын
I did it in my head before he talked about plotting the centerpoint of the circle. 14-4=10÷2=5=r
@MeMadeIt10 күн бұрын
Exactly
@science10046 күн бұрын
Yes you don't need the equation at all. Bounded on y by 4 and 14, the distance between on y defines 2r.
@gettothepointbyjamescordwe568711 күн бұрын
Or just plug (2,4) or (2,14) into the equation, which also gives you r
@Kengiwu11 күн бұрын
This, or you can divide the difference of Y's values by 2
@IrrelevantGuy11 күн бұрын
I'd usually use this method also
@n3rdola511 күн бұрын
14-4=2r. Boy, what a tough question.
@moxbroker11 күн бұрын
If my tests had questions this hard i would pass with 105%
@soumilsodani51227 күн бұрын
Thank you for your videos! I wish more of the Internet was helpful and educational like this.
@user-ou4lu4ug7j11 күн бұрын
Can't you solve it simply using the first info provided? Since the end points of the circle's diameter are already given, the difference of Y's values (since X is unchanged) must be the diameter. And of course, you divide that by 2 to get the radius that is 5.
@IrrelevantGuy11 күн бұрын
It's even stated that it is a diameter.
@davidnewell323211 күн бұрын
Yeah but he’s showing how to think about the problem not all questions have shortcuts
@Waller1211 күн бұрын
Why?
@ayunda.alicia6 күн бұрын
@@ayunda.alicia why not?
@IrrelevantGuy6 күн бұрын
I did it directly by distance formula... As given the endpoints of diameter.... Then divide by 2 A(2,4) B(2,14) i.e d(AB)= 10 Hence radius= (Dia ➗ 2) = 5
@Student_support1149 күн бұрын
IF this is a question on the 2024 SAT Math test then the educational system is really being "dumbed down". Basically the question is "For a circle with diameter of 10, what is the radius". Not what you would call a difficult question.
@frederickwilt554111 күн бұрын
That’s ridiculously easy for an SAT question. 4 to 14 is a distance of 10, divided by 2 is 5. Remember when we took the SAT 30 years ago? Couldn’t work those problems out in your head.
@miriamcollins758710 күн бұрын
This would be a more interesting question, if the two points they gave you WEREN'T points that were directly across from each other, and only gave you one of the coordinates for the center. For instance (2, 4) and (6, 12), with the equation of the circle being (x - a)^2 + (y - 9)^2 = r^2.
@carultch2 күн бұрын
I love this guy
@lawrencelawsen68243 күн бұрын
As an 8th grader, I solved this in 2 seconds
@user-xv7xq3wt4x6 күн бұрын
It's easy to understand with the position of the circle visually
@user-iu8uk5tc9s11 күн бұрын
Schools dont require SATs anymore
@tigerfifty10 күн бұрын
Some do, some don't.
@mrhtutoring10 күн бұрын
That's a shame. That explains the state of American education.
@420sakura110 күн бұрын
Does universities like HARVARD, STANFORD, OXFORD, and the MIT... Also take admissions through SAT or they have their separate entrance test?
@Student_support1149 күн бұрын
Harvard, MIT requires SAT while it's optional for Stanford. Oxford is not in the USA.
@mrhtutoring9 күн бұрын
THATS in the SAT? this isnt a hard one is it?
@Gbhmagic11 күн бұрын
Maybe it's one of those trick questions that try to trick you into thinking it's harder than it actually is, by providing "somewhat relevant but not actually necessary to solve the problem" information. Like word problems that are like a paragraph long, but in reality only a couple of sentences actually matter to the completion of the problem.
@vidlover787510 күн бұрын
@@vidlover7875 i hope so. I never took the SAT as im from a different country .. in tje US now.
you don't even need the equation. 14-4=10, aka the diameter. therefore, the radius is 5
I did it in my head before he talked about plotting the centerpoint of the circle. 14-4=10÷2=5=r
Exactly
Yes you don't need the equation at all. Bounded on y by 4 and 14, the distance between on y defines 2r.
Or just plug (2,4) or (2,14) into the equation, which also gives you r
This, or you can divide the difference of Y's values by 2
I'd usually use this method also
14-4=2r. Boy, what a tough question.
If my tests had questions this hard i would pass with 105%
Thank you for your videos! I wish more of the Internet was helpful and educational like this.
Can't you solve it simply using the first info provided? Since the end points of the circle's diameter are already given, the difference of Y's values (since X is unchanged) must be the diameter. And of course, you divide that by 2 to get the radius that is 5.
It's even stated that it is a diameter.
Yeah but he’s showing how to think about the problem not all questions have shortcuts
Why?
@@ayunda.alicia why not?
I did it directly by distance formula... As given the endpoints of diameter.... Then divide by 2 A(2,4) B(2,14) i.e d(AB)= 10 Hence radius= (Dia ➗ 2) = 5
IF this is a question on the 2024 SAT Math test then the educational system is really being "dumbed down". Basically the question is "For a circle with diameter of 10, what is the radius". Not what you would call a difficult question.
That’s ridiculously easy for an SAT question. 4 to 14 is a distance of 10, divided by 2 is 5. Remember when we took the SAT 30 years ago? Couldn’t work those problems out in your head.
This would be a more interesting question, if the two points they gave you WEREN'T points that were directly across from each other, and only gave you one of the coordinates for the center. For instance (2, 4) and (6, 12), with the equation of the circle being (x - a)^2 + (y - 9)^2 = r^2.
I love this guy
As an 8th grader, I solved this in 2 seconds
It's easy to understand with the position of the circle visually
Schools dont require SATs anymore
Some do, some don't.
That's a shame. That explains the state of American education.
Does universities like HARVARD, STANFORD, OXFORD, and the MIT... Also take admissions through SAT or they have their separate entrance test?
Harvard, MIT requires SAT while it's optional for Stanford. Oxford is not in the USA.
THATS in the SAT? this isnt a hard one is it?
Maybe it's one of those trick questions that try to trick you into thinking it's harder than it actually is, by providing "somewhat relevant but not actually necessary to solve the problem" information. Like word problems that are like a paragraph long, but in reality only a couple of sentences actually matter to the completion of the problem.
@@vidlover7875 i hope so. I never took the SAT as im from a different country .. in tje US now.
5?
Or (14-4)/2