Math Problem Statement
Graph this line: y–1=– 2(x+1)
Solution
To graph the equation , let's first rewrite it in slope-intercept form , where is the slope and is the y-intercept.
Step 1: Simplify the equation
Starting with: Distribute the on the right-hand side: Now, add 1 to both sides to solve for :
Step 2: Identify the slope and y-intercept
The equation is now in the form , where:
- Slope
- Y-intercept
This means the line has a slope of -2 (it falls 2 units for every 1 unit moved to the right) and crosses the y-axis at .
Step 3: Graph the line
- Start at the y-intercept: point .
- From this point, use the slope to find another point: move down 2 units and right 1 unit, landing at .
- Connect these two points with a straight line.
Would you like a visual of the graph, or any additional details on how to interpret the slope or intercept?
Here are 5 related questions to explore further:
- How do you interpret the slope of a line geometrically?
- How does changing the slope of the line affect its steepness?
- What happens if the y-intercept is positive or zero?
- How do you graph a line from an equation in point-slope form?
- How do you find the x-intercept of a line?
Tip: If the slope is negative, the line will slope downward as you move from left to right across the graph.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Slope-Intercept Form
Formulas
y = mx + b
Theorems
Slope formula
Y-intercept
Suitable Grade Level
Grades 7-9