3 years ago

What is the slope of the line that runs through points (-7,-20) and (12,18)? Write the equation of that line.

Mathematics

2 answers:

Ilia_Sergeevich [38]3 years ago

7 0

Answer:

The slope is 2 which means the equation would be y=2x.

Step-by-step explanation:

gavmur [86]3 years ago

3 0

Answer:

Step-by-step explanation:

-20 - 18 = -38

-7 - 12 = -19

-38/-19 = 2

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Harrizon [31]

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2 years ago

1/4 times the sum of a number and −3.2 is 1.8. What is the number?

joja [24]

Answer:

10.4

Step-by-step explanation:

Let the number be x

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$\dfrac{1}{4}* \left( x - 3.2 \right) = 1.8\\\\\Multiply \ the \ whole \ equation \ by \ 4 \\\\4*\dfrac{1}{4} *(x - 3.2) = 1.8*4\\\\\\x - 3.2 = 7.2\\\\Add \ 3.2 \ to \ both \ sides\\\\\\x = 7.2 + 3.2\\$