Question

DE X CBSE
Duration : 40 Minutes
Max Marks
Solve any FOUR from the following
1. Write The General form of Pair of Unear equations in two variables
2. Write the methods for Solving the pair of linear equations in two variables
3. Pair of linear equations are how many types, what are they
4. Form the pair of linear equations in two variables for the following situation,
together cost Rs 50, where as 7 pends and 5 pens together cost Rs 46.
5. Write I Intersect line equation il Parallel line equation . Coincidentalne
following equation 2x + 3y - 80.
6. Check the following are consistent or inconsistent 3x + 2y 5 and zx-3y7
7. On comparing and find out whether the lines representing the equ
at point or parallel är coinciderit lines Lsx -4.3 and 7x • dy-90
II. 9x + 3y - 12 and 13x + 6y. 24°​

Answer 1

PLEASE GIVE ME A BRANLIAST ANSWER AND FOLLOW ME

1. ax+by+c=0 and a2x+b2y+c2=0
2. 3type Single Solution a1/a2g≠b1/b2
3. Infinite Solutions a1/a2g=b1/b2=c1/c
4. No Solution. if a1/a2g=b1/b2≠c1/c2