Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Find the points on x- axis which are at a distance of 2√5 units from the point (7, -4) . How many such points are there?
Asked by SANDRA SAJI | 02 Feb, 2017, 09:53: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space the space point space on space the space straight x minus axis space be space left parenthesis straight a comma 0 right parenthesis. So comma space using space distance space formula comma space we space get 2 square root of 5 equals square root of left parenthesis 7 minus straight a right parenthesis squared plus left parenthesis negative 4 minus 0 right parenthesis squared end root Squaring space both space sides comma space we space get 20 equals left parenthesis 7 minus straight a right parenthesis squared plus left parenthesis negative 4 minus 0 right parenthesis squared rightwards double arrow 49 minus 14 straight a plus straight a squared plus 16 equals 20 rightwards double arrow straight a squared minus 14 straight a plus 45 equals 0 rightwards double arrow left parenthesis straight a minus 9 right parenthesis left parenthesis straight a minus 5 right parenthesis equals 0 rightwards double arrow straight a equals 9 space or space straight a equals 5 So comma space the space points space are space left parenthesis 9 comma 0 right parenthesis space and space left parenthesis 5 comma 0 right parenthesis. end style
Answered by Rebecca Fernandes | 03 Feb, 2017, 09:32: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Maths
The distance of the point (5,-2) from x-axis will be :-
Asked by pathakvaishnavi9139 | 23 Mar, 2024, 10:45: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
find the point on the y-axis which equidistant from (4,1)and (-3,5)
Asked by jdharmendra097 | 21 Feb, 2024, 08:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
assumes that is unit is 1 km to answer the following question the coordinates given below are given from a base station xyz airport find the distance between two aeroplan in kilometre which are at location A and B If a line on the y- axis and has an ordinate 1.5 will B lines on the x axis and has and abscissa 0.5 ..
Asked by namansinghnamansinghdelhi | 22 Dec, 2023, 10:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
2+2
Asked by kabitamula124 | 20 Dec, 2023, 11:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
at what point the origin be shifted so that the point 3 2 are seen the position at -34
Asked by sufibadole08 | 19 Nov, 2023, 09:13: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
solve a question for me. length breath and height of a cuboidal room are 6.15m ,4.25m,and 3.15m.Find the length of the longest rod required to measure each of the length breath and height of the room completel [exactly].Also find how many times we will use this rod of longest length to measure length,breath and height.
Asked by d17896354 | 29 Sep, 2023, 06:25: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
plz solve both parts dear experts :
question image
Asked by savitamahajan202 | 02 Jan, 2023, 11:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
find the equation of locus of p which distance is A:B in ratio 2:3
Asked by lohitaashw.neerella | 30 Jun, 2022, 09:22: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Send coordinate geometry solution's
Asked by imamalisab60 | 12 Nov, 2021, 08:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
solve
question image
Asked by Trisha Gupta | 03 Nov, 2021, 12:45: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×