Straight line equation easy question

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SUMMARY

The discussion centers on understanding the equation of a straight line, specifically the equation y = -2x + 2. The slope is calculated using the formula (y2 - y1) / (x2 - x1), which in this case yields a slope of -2. The constant term, +2, represents the y-intercept, indicating where the line crosses the y-axis. To derive a line with a different slope, such as +2, one must adjust the equation accordingly.

PREREQUISITES
  • Understanding of linear equations
  • Familiarity with slope calculation
  • Knowledge of y-intercept concepts
  • Basic algebra skills
NEXT STEPS
  • Study the slope-intercept form of linear equations (y = mx + b)
  • Learn how to graph linear equations using slope and y-intercept
  • Explore the relationship between slope and parallel/perpendicular lines
  • Practice deriving equations from given slopes and y-intercepts
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Students learning algebra, educators teaching linear equations, and anyone seeking to improve their understanding of graphing and interpreting straight lines.

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i have an easy question i Know how to calculate the slope but how I can get all the equation I know before that the equation is -2x+2 I know how to calculate the slope it
is y2-y1/x2-x1 but how can I get +2
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The constant is the same as the point where the line crosses the y-axis. So in this case you see it crosses at positive 2 so the constant will be +2.
 
your question is somewhat confusing...if you are asking how to get a slope = 2, you need a different line. the slope of a straight line is constant. y = -2x +2 is a straight line and you calculated the slope correctly, -2.

To find a line with slope = 2, use slope equation...y=mx+b.
 
It's not confusing if you look at the picture
 

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