Math Problem Statement
Complete the table by choosing values of x for the equation y = 2x - 3 and plotting the points on a graph.
Solution
The table asks you to choose values for , substitute them into the equation , and calculate the corresponding -values. Let's fill in the table by choosing a few values for and calculating .
Steps:
- Start with a few values for , such as , , and .
- Substitute each into the equation .
Calculation:
-
When : So, .
-
When : So, .
-
When : So, .
Completed Table:
-2 | -7 |
0 | -3 |
2 | 1 |
Now, you can plot these points , , and on the graph. Connect the points to draw the line.
Would you like more details on how to plot these points or graph the line?
Follow-up Questions:
- What happens to the graph if the slope (the coefficient of ) changes?
- What does the -intercept tell you about the graph?
- Can you choose another value for to add more points to the table?
- How would the equation change if it were shifted upwards by 4 units?
- What is the effect of multiplying the entire equation by a constant?
Tip:
When choosing values for , it's often helpful to pick values that are easy to calculate and cover both negative, zero, and positive numbers to get a clear graph of the line.
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Graphing
Slope-Intercept Form
Formulas
y = mx + b
Theorems
Slope-Intercept Theorem
Suitable Grade Level
Grades 7-9