Math Problem Statement

Which is the graph of y = -x + 2?

Solution

The equation provided is y=x+2y = -x + 2, which has a slope of 1-1 and a y-intercept of 22.

Steps to find the correct graph:

  1. Y-Intercept: The graph should cross the y-axis at y=2y = 2.
  2. Slope: Since the slope is 1-1, the line will decrease by 11 unit on the y-axis for every 11 unit increase on the x-axis, creating a downward diagonal line from left to right.

Identifying the Correct Option

  • Look for the graph with a line that intercepts the y-axis at 22 and has a negative slope, moving downward as it goes from left to right.
  • Based on these characteristics, Option C is the correct answer, as it matches the line y=x+2y = -x + 2.

Would you like more details on the concept of slopes and intercepts?


Here are some related questions to deepen your understanding:

  1. How does the slope affect the orientation of a line on a graph?
  2. What happens to the graph of y=x+2y = -x + 2 if the slope changes to 11?
  3. How would the graph look if the y-intercept was changed to 2-2 instead of 22?
  4. Can you identify the line equation if only the graph is given without any labels?
  5. How do positive and negative slopes visually differ on a graph?

Tip: To quickly identify the slope and intercept in an equation, remember that in the form y=mx+by = mx + b, mm is the slope, and bb is the y-intercept.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

y = mx + b (Slope-Intercept Form)

Theorems

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Suitable Grade Level

Grade 12