Updated chapter 2

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9 Terms

1
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What can a x-intercept be referred to as?

A solution, zero of a function

2
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<p>Solve</p>

Solve

  • Graph the equation

  • Figure out where it crosses the x-intercept

<ul><li><p>Graph the equation </p></li><li><p>Figure out where it crosses the x-intercept </p></li></ul><p></p>
3
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term image

  • Graph

  • Figure out where they intersect

<ul><li><p>Graph </p></li><li><p>Figure out where they intersect</p></li></ul><p></p>
4
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Linear Regression

y=ax+b

5
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<p>Solve</p>

Solve

x+y=3

→ y=3-x

x-y=1

→ y=x-1

Graph both of these are see where they intersect

6
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<p>Solve?</p>

Solve?

y1= 5558x

y2=61,740+440x

Find out where they intersect “break even”

7
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<p>Solve the systems</p>

Solve the systems

  • Make both equations have y=

  • Graph the new equations

  • figure out where they intersect

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<p>Solve this inequality</p>

Solve this inequality

  • -3 on both sides

  • -2x<6 | Divide by -2 on both sides |

  • Since you divided by a negative the sign gets flipped

  • x>-3

  • Interval notation : (-3, infinity)

9
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<p>Solve</p>

Solve

Set y1) 5x+2/5

Set y2) 4x-7/8

Find out where they intersect

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