Please anyone give me question paper of linear inequations of class 8
Answers
Step-by-step explanation:
1. Solve : 141x + 103y = 217; 103x + 141y = 27
2. Solve : 55x + 52y = 217; 52x + 55y = 217
5. Solve : x + y = 18; y + z = 12; z + x = 16
6. Which of the following is not a linear equation in two variables?
(i) px + qy + c = 0
(ii) ax2 + bx + c = 0
(iii) 3x + 2y = 5
7. One of the solutions of the linear equation 4x � 3y + 6 = 0 is
(i) (3, 2)
(ii) (�3, 2)
(iii) (�3, �2)
8. Write the linear equation whose solution is x = �1, y = 1?
9. The point (m, m) always lies on which of the following lines?
x � y = 0 or x + y = 2m
10. How many linear equations in x and y can have a solution as (x = 1, y = 3)?
11. Question: Find the value of variables which satisfies the following equation:
2x + 5y = 20 and 3x+6y =12.
12. Identify the algebraic linear equations from the given expressions.
(a) x2 + x = 2
(b) 3x + 5 = 11
(c) 5 + 7 = 12
(d) x + y2 = 3
13. Check whether the linear equation 3x + 5 = 11 is true for x = 2.
14. If x = a, then which of the following is not always true for an integer k. (NCERT Exemplar)
(a) kx = ak
(b) xk = ak
(c) x – k = a – k
(d) x + k = a + k
15. Solve the following linear equations:
(a) 4x + 5 = 9
(b) x + 32 = 2x
16. Solve the given equation 31x × 514 = 1712