Math Problem Statement
Solve
Solution
Let's solve the problem step by step.
We are tasked with determining the true statement about the y-intercepts of Function A and Function B.
Function A (from the graph):
To find the y-intercept of Function A, we look at the graph where the line crosses the y-axis.
- From the graph, we see that the line crosses the y-axis at y = -4. So, the y-intercept of Function A is -4.
Function B (from the table):
For Function B, we can calculate the equation of the line using the points given in the table and then find the y-intercept. We can use the slope-intercept form of a line, , where is the slope and is the y-intercept.
First, we calculate the slope : So, the slope .
Now, use the slope-intercept form to find the y-intercept . We can plug in one of the points from the table, say (-6, -11): Thus, the y-intercept of Function B is 1.
Comparing y-intercepts:
- The y-intercept of Function A is -4.
- The y-intercept of Function B is 1.
Therefore, the y-intercept of Function A is less than the y-intercept of Function B.
The correct statement is:
- "The y-intercept of Function A is less than the y-intercept of Function B."
Would you like more details or explanations?
Here are 5 related questions to expand on this topic:
- How do you find the slope of a line using two points?
- What is the significance of the y-intercept in a linear function?
- How can we use the slope and y-intercept to graph a linear equation?
- How do you determine if two lines are parallel or perpendicular?
- How do you interpret the slope in real-world scenarios?
Tip: Remember, the y-intercept is the point where the line crosses the y-axis, and it occurs when .
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Slope-Intercept Form
Y-Intercept
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b
Theorems
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Suitable Grade Level
Grades 7-9