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Let a ,\ b ,\ c be parameters. Then the ...

Let `a ,\ b ,\ c` be parameters. Then the equation `a x+b y+c=0` will represent a family of straight lines passikng through a fixed point iff there exists a linear relation between `a , b ,\ a n d\ c dot`

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Statement-1: All chords of the curve 3x^(2)-y^(2)-2x+4y=0 which subtend a right angle at the origin pass through a fixed point. Statement-2: The equation ax+by+c=0 represents a family of straight lines passing through a fixed point iff there is a linear relation between a, b and c.

Statement - 1 : If non-zero numbers a , b , c are in H.P. , then the equation (x)/(a) + (y)/(b) = (1)/(c) represents a family of concurrent lines . Statement- 2 : A linear equation px + qy = 1 in x , y represents a family of straight lines passing through a fixed point iff there is a linear relation between p and q .

If 3a + 2b + 6c = 0 the family of straight lines ax+by = c = 0 passes through a fixed point . Find the coordinates of fixed point .

Find the equation of the straight lines passing through the following pair of point: (a , b)a n d\ (a+b ,\ a-b)

If a ,b ,c are variables such that 3a+2b+4c=0 , then show that the family of lines givenby a x+b y+c=0 pass through a fixed point. Also, find that point.

If a ,\ b , c are in A.P., then the line a x+b y+c=0 passes through a fixed point. write the coordinates of that point.

Find the equation of the straight line passing through the origin and bisecting the portion of the line a x+b y+c=0 intercepted between the coordinate axes.

The equation x^2+y^2+2x-4y+5=0 represents a. a point b. a pair of straight lines c. a circle of non zero radius d. none of these

If a + 2b + 3c = 0 " then " a/3+(2b)/3+c=0 and comparing with line ax + by + c, we get x = 1/3 & y = 2/ 3 so there will be a point (1/3,2/3) from where each of the lines of the form ax + by + c = 0 will pass for the given relation between a,b,c . We can say if there exists a linear relation between a,b,c then the family of straight lines of the form of ax + by +c pass through a fixed point . If a , b, c are consecutive odd integers then the line ax + by + c = 0 will pass through

If a + 2b + 3c = 0 " then " a/3+(2b)/3+c=0 and comparing with line ax + by + c, we get x = 1/3 & y = 2/ 3 so there will be a point (1/3,2/3) from where each of the lines of the form ax + by + c = 0 will pass for the given relation between a,b,c . We can say if there exists a linear relation between a,b,c then the family of straight lines of the form of ax + by +c pass through a fixed point . If a , b,c are in A.P., then the line ax + 2by + c = 0 passes through

RD SHARMA ENGLISH-THE STRAIGHT LINES -All Questions
  1. If two opposite vertices of a square are (1,2) and (5,8) find the c...

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  2. Obtain the equations of the line passing through the intersection of ...

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  3. Let a ,\ b ,\ c be parameters. Then the equation a x+b y+c=0 will repr...

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  4. Find the equation of a straight line through the point of intersection...

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  5. Find the equation of a straight line passing through the point of i...

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  6. Find the equation of the line passing through the point of intersectio...

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  7. Find the equation of the straight line drawn through the point of in...

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  8. Prove that the family of lines represented by x(1+lambda)+y(2-lambda)+...

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  9. Find the equation of the straight line passing through the point of in...

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  10. Find the equation of the line through the point of intersection of, th...

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  11. Write an equation representing a pair of lines through the point (a , ...

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  12. Write the coordinates of the orthocentre of the triangle formed by the...

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  13. If the centroid of a triangle formed by the points (0,0), (costheta, s...

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  14. Write the value of theta in (0,\ pi/2) for which area of the triangle ...

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  15. The distance between the lines 4x + 3y = 11 and 8x + 6y = 15 is

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  16. Write the coordinates of the orthocentre of the triangle formed by the...

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  17. If the lines x+a y+a=0,\ b x+y+b=0\ a n d\ c x+c y+1=0 are concurrent,...

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  18. Write the area of the triangle formed by the coordinate axes and the ...

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  19. Write the coordinates of the image of the point (3,8) in the lines x+3...

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  20. Write the integral values of m for which the x-coordinates of the poin...

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