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lisov135 [29]
3 years ago
7

Write the equation of the line shown in point slope form (1,2) (3,6)

Mathematics
1 answer:
Kipish [7]3 years ago
7 0

The point-slope form:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (1, 2) and (3, 6). Substitute:

m=\dfrac{6-2}{3-1}=\dfrac{4}{2}=2\\\\\boxed{y-2=2(x-1)}

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Which of the values satisfy the following inequality
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  A:  x = 20

  C:  x = -9

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You can solve the inequality and compare that with the offered choices, or you can try the choices in the inequality to see if it is true. Either approach works, and they take about the same effort.

<u>Solving it</u>:

Unfold it ...

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Add 7.5 ...

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The numbers 20 and -9 are in this range: answer choices A and C.

_____

<u>Trying the choices</u>:

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C:  |-9 -7.5| = 16.5 ≤ 17 . . . . .this works

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The choices that work are answer choices A and C.

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