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oksano4ka [1.4K]
3 years ago
13

How can you tell whether a graph shows a proportional relationship?

Mathematics
2 answers:
valkas [14]3 years ago
4 0

Answer:

a straight line through the zero

kipiarov [429]3 years ago
4 0
Line thru zero is straight
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Given the function
nika2105 [10]

\left \{ {{7x+6\:\:\:\:\:\:x

f(-1)

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-7\cdot \:1+6x                          Swap the negative sign

-7+6x                               Multiply the numbers

-7+6x+7                  Add 7 to both sides

6x                                       Simplify

\frac{6x}{6}                                       Divide both sides by 6

x                                        Simplify

-7\cdot \:1+12x                     Swap the negative sign

-7+12x                          Multiply the numbers

-7+12x+7              Add 7 to both sides

12x                                   Simplify

\frac{12x}{12}                                  Divide both sides by 12

x                                      Simplify

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