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CBSE Class 10 Answered

solve
Asked by Trisha Gupta | 03 Nov, 2021, 12:44: AM
Expert Answer
begin mathsize 16px style Distance space between space the space point space on space straight x space minus space axis space left parenthesis straight x comma space 0 right parenthesis space to space the space point space left parenthesis 7 comma space minus 4 right parenthesis space equals space 2 square root of 5
By space using space distance comma space we space get
square root of open parentheses 7 minus straight x close parentheses squared plus open parentheses negative 4 minus 0 close parentheses squared end root space equals space 2 square root of 5
Squaring space on space both space the space sides comma space we space get
rightwards double arrow 49 space plus space straight x squared minus space 14 straight x space plus space 16 space equals space 20
rightwards double arrow straight x squared minus space 14 straight x space plus space 45 equals space 0
rightwards double arrow straight x squared minus 9 straight x space minus 5 straight x space plus space 45 space equals 0
rightwards double arrow straight x left parenthesis straight x minus 9 right parenthesis minus 5 left parenthesis straight x minus 9 right parenthesis equals 0
rightwards double arrow left parenthesis straight x minus 9 right parenthesis left parenthesis straight x minus 5 right parenthesis equals 0
rightwards double arrow straight x space equals space 9 space or space straight x space equals space 5
Here comma space straight x space can space have space two space values space so space there space are space two space points space on space straight x space minus axis.
Therefore comma space the space coordinates space of space straight a space points space on space straight x space minus space axis space are space left parenthesis 9 comma space 0 right parenthesis space and space left parenthesis 5 comma space 0 right parenthesis. end style
Answered by Yasmeen Khan | 03 Nov, 2021, 03:29: PM
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