The point of the form (a, a) always lies on
a. x-axis
b. y-axis
c. On the line y = x
d. On the line x + y = 0
Solution:
The point given is of the form (a, a)
Here both x and y coordinate values are the same
So it must lie on the line y = x
Therefore, the point lies on the line y = x.
✦ Try This: If (6, 0) is a solution of the linear equation 2x + 3y = 4k, then the value of k is a. 3, b. 2, c. 5, d. 7
The given linear equation is
2x + 3y = 4k
The point given here is
(x, y) = (6, 0)
Let us substitute the given values in the equation
2 (6) + 3 (0) = 4k
By further calculation
12 + 0 = 4k
So we get
k = 12/4
k = 3
Therefore, the value of k is 3.
☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 4
NCERT Exemplar Class 9 Maths Exercise 4.1 Problem 18
The point of the form (a, a) always lies on a. x-axis, b. y-axis, c. On the line y = x, d. On the line x + y = 0
Summary:
The point of the form (a, a) always lies on the line y = x as both the x and y coordinates are the same
☛ Related Questions:
- The point of the form (a, -a) always lies on the line a. x = a, b. y = -a, c. y = x, d. x + y = 0
- ax + by + c = 0, where a, b and c are real numbers, is a linear equation in two variables. Is the gi . . . .
- A linear equation 2x + 3y = 5 has a unique solution. Is the given statement true or false? Justify y . . . .
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