Home
Class 14
MATHS
Consider the following question and deci...

Consider the following question and decide which of the statements is sufficient to answer the question.
Question:
Find the value of m, slope of a line.
Statements:
1) y=mx+2
2) Line passes through (2, 1)

A

Only statement 2 is sufficient

B

Either statement 1 or 2 is sufficient

C

Only statement 1 is sufficient

D

Both statements 1 and 2 are sufficient

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of \( m \), the slope of the line, we will analyze the two statements provided and see how they can be used together to solve for \( m \). ### Step-by-Step Solution: 1. **Understanding the First Statement:** The first statement gives us the equation of the line: \[ y = mx + 2 \] Here, \( m \) is the slope we need to find. 2. **Understanding the Second Statement:** The second statement tells us that the line passes through the point \( (2, 1) \). This means when \( x = 2 \), \( y = 1 \). 3. **Substituting Values into the Equation:** We can substitute \( x = 2 \) and \( y = 1 \) into the equation from the first statement: \[ 1 = m(2) + 2 \] 4. **Solving for \( m \):** Rearranging the equation gives us: \[ 1 = 2m + 2 \] Subtracting 2 from both sides: \[ 1 - 2 = 2m \] This simplifies to: \[ -1 = 2m \] Dividing both sides by 2: \[ m = -\frac{1}{2} \] 5. **Conclusion:** We have found the value of \( m \) to be \( -\frac{1}{2} \). ### Final Answer: Both statements are sufficient to find the value of \( m \).
Promotional Banner