linear functions

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Last updated 5:47 PM on 10/8/26
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7 Terms

1
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slope formula

y2-y1 / x2 - x1

2
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slope intercept form

y=mx+b

3
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parallel lines

never intersect, lines have same slope

4
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perpendicular lines

intersect at 90 degrees, have opposite reciprocal slopes

5
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key points of linerar functions

  1. x int: y=0

y int: x=0

  1. linerar functions always increasing or always decreasing

  2. domain: (-inf,inf)

  3. range: (-inf,inf)


6
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equivalent forms of a line

slope intercept: y=mx+b

general form: AX+BY+C=0

ABC are intergers

point slope form: y-y1=m(x-x1)

(x1,y1) is point on line

7
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solving matrices

STEPS:

  1. rearrange equation to matrix form: equation needs to have variables on one side, constant on other

  2. 2nd-matrix-edit-rowxcolumn-enter coefficients- 2nd-quit

  3. 2nd-matrix-math-B: rref-(-enter

  4. 2nd-matrix-[A]-enter-enter