Math Problem Statement
Solution
Let's go through each question step-by-step using the information given for the four functions.
Analysis of Each Function:
- Function 1: The graph shows a line with a negative slope. We can observe that the slope appears to be less steep than Function 3 (which has a slope of -5).
- Function 2: Given as a table of points. We can calculate the slope by finding the difference in -values over the difference in -values. For example: So, the slope of Function 2 is 4.
- Function 3: Defined by the equation , where the slope is -5, which is steep and negative.
- Function 4: Defined with a slope of 2 and a -intercept of 3.
Solving Each Part:
(a) Which function’s graph is the steepest?
- Answer: The steepest slope in terms of magnitude is -5 in Function 3. Thus, Function 3 is the steepest.
(b) Which functions have graphs with -intercepts greater than ?
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Function 1: Observing the graph, the -intercept appears to be at -2.
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Function 2: From the table, when , , which is less than -3.
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Function 3: The equation has a -intercept of -2.
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Function 4: The -intercept is 3.
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Answer: Function 1, Function 3, and Function 4 have -intercepts greater than -3.
(c) Which function has the graph with a -intercept farthest from 0?
- -intercepts:
- Function 1: -2
- Function 2: -4
- Function 3: -2
- Function 4: 3
The -intercept farthest from 0 in absolute value is -4 from Function 2.
Final Answers:
- (a): Function 3
- (b): Functions 1, 3, and 4
- (c): Function 2
Would you like more details on any of these calculations?
Here are some related questions to further your understanding:
- How do we find the slope between two points on a line?
- What does the steepness of a line signify in real-world terms?
- How do we determine a line's intercept from its graph?
- Why is the absolute value important in determining the farthest distance from 0?
- What are the characteristics of a line with a positive slope versus a negative slope?
Tip: To identify the steepest graph, always compare the absolute values of the slopes. The higher the absolute value, the steeper the line.
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Slope and Intercept
Absolute Value
Formulas
Slope formula: (y2 - y1) / (x2 - x1)
y-intercept from linear equations
Theorems
Slope-Intercept Form
Suitable Grade Level
Grade 8
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