Math Problem Statement
Solution
The problem asks for the correct order of the functions based on their y-intercepts from least to greatest. Let’s examine each function to find their y-intercepts:
Function A:
The equation is given as . The y-intercept is the constant term in the slope-intercept form , which is 4.
Function B:
We need to calculate the equation of the line passing through the points and .
- The slope is calculated as:
- Using the point-slope form of a line , substituting and : The y-intercept is 2.
Function C:
Looking at the table, the point where corresponds to the y-intercept, which is 3.
Now, ordering the y-intercepts:
- Function B: y-intercept = 2
- Function C: y-intercept = 3
- Function A: y-intercept = 4
Thus, the order from least to greatest y-intercept is:
The correct answer is:
Option D: Function B, Function C, Function A.
Would you like more details on any of these steps?
Here are 5 questions for further understanding:
- How do you find the slope of a line between two points?
- What is the y-intercept, and how can it be determined from a graph or table?
- How do you use point-slope form to find the equation of a line?
- What are the key differences between the forms of a linear equation?
- How does the slope of a line affect its steepness?
Tip: In a linear equation, the y-intercept is where the line crosses the y-axis (when ).
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Y-Intercept
Slope
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Linear equation in slope-intercept form: y = mx + b
Theorems
Point-slope form of a line
Slope-intercept form
Suitable Grade Level
Grades 9-10
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