Math Problem Statement
Which of the following graphs represents the equation y = (2/5)x + 2?
Solution
The equation provided is . This is in slope-intercept form, where the slope is and the y-intercept is .
Let's break it down:
- Slope : This tells us that for every increase of 5 units in the x-direction, the graph will rise by 2 units in the y-direction (a positive slope).
- Y-intercept (b = 2): The line crosses the y-axis at the point (0, 2).
Now, looking at the graphs:
- We need to identify the graph that crosses the y-axis at and has a positive slope that rises to the right. From the four options:
- Graph W matches this description: it crosses the y-axis at 2 and has a positive slope.
Thus, Graph W represents the equation .
Would you like more details on the solution, or do you have any questions?
Here are 5 related questions you might want to explore:
- How do you find the slope from two points on a line?
- What is the significance of the y-intercept in real-life situations?
- How does the slope of a line affect the steepness of a graph?
- Can you convert an equation from slope-intercept form to standard form?
- What happens to a graph when the slope is negative?
Tip: The slope of a line tells you how the y-value changes with respect to the x-value. A larger slope means a steeper line.
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Math Problem Analysis
Mathematical Concepts
Slope-Intercept Form
Linear Equations
Graphing
Formulas
y = mx + b
Theorems
Slope-Intercept Theorem
Suitable Grade Level
Grades 8-10