Math Problem Statement
Graph the function f(x) = (1/4)x + 3. Use the line tool to draw the line x = -4 and then use the dot tool to graph the point (-4, f(-4)).
Solution
It looks like you are working on a graphing problem based on the function . The problem asks you to:
- Graph the line of the given function.
- Draw the vertical line .
- Graph the point .
Let's break this down:
-
Function Graph :
- The slope of the line is , meaning that for every increase of 1 unit in , increases by .
- The y-intercept is 3, so the line crosses the y-axis at .
-
Evaluate : So, the point is .
-
Plotting the Line :
- This is a vertical line that passes through on the graph. It will be a straight vertical line at that point.
-
Plot the Point :
- Once you've drawn the vertical line, plot the point on the graph, which lies on the line of the function.
Would you like a more detailed breakdown of any part of this process or further clarification?
Here are five follow-up questions related to this problem:
- What does the slope tell us about the steepness of the line?
- How would the graph change if the slope were negative?
- What if the y-intercept were shifted up or down?
- How do you interpret the point in relation to the graph?
- Can you predict the value of for other values of , like or ?
Tip: When graphing linear functions, always start by plotting the y-intercept and then use the slope to find additional points.
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Slope and Intercept
Graphing
Formulas
f(x) = (1/4)x + 3
Slope formula: (y2 - y1) / (x2 - x1)
Theorems
Slope-Intercept Form: y = mx + b
Suitable Grade Level
Grades 9-10