Math Problem Statement
1. If f(x) = x + 3, the value of f(2) is
2. The equation of a straight line is given as 2y + x = 4. The x-intercept of this line is
Solution
Let's solve each question step-by-step.
Question 1
The function is given as: We are asked to find .
To solve this, substitute into the function: Answer: The correct option is C. 5
Question 2
The equation of the line is given as: We need to find the -intercept of this line. The -intercept occurs when .
- Substitute into the equation:
- This simplifies to:
Answer: The correct option is D. 4
Would you like more details on these solutions or have any further questions?
Here are some related questions for further practice:
- If , what is ?
- For a line with equation , what is the -intercept?
- If , find .
- What is the -intercept of the line ?
- If , what is ?
Tip: When finding intercepts, remember that setting gives the -intercept, and setting gives the -intercept.
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Math Problem Analysis
Mathematical Concepts
Functions
Linear Equations
Intercepts
Formulas
f(x) = x + 3
2y + x = 4
Theorems
Function evaluation
Finding intercepts
Suitable Grade Level
Grades 7-9