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natita [175]
3 years ago
5

A line has the equation 3x–4y–12=0. Write the equation in slope-intercept form.

Mathematics
2 answers:
algol133 years ago
8 0

Answer:

y=3/4x−7/4

Step-by-step explanation:

rjkz [21]3 years ago
5 0
The slope-intercept form: y = mx + b


3x-4y-12=0\ \ \ |+4y\\\\3x-12=4y\\\\4y=3x-12\ \ \ |:4\\\\y=\dfrac{3}{4}x-3
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The coordinates of the vertices of​ quadrilateral ABCD ​ are A(−4, −1) , B(−1, 2) , C(5, 1) , and D(1, −3) .
finlep [7]

Hi there, KawallPotato! :)

Finding the slope of a line is finding the rise over run, or the change in y over the change in x. Let me show you what I mean.

Slope = change in y / change in x

Or in other words, \frac{y2 - y1}{x2 - x1}

Let's try it with AB. The first thing to consider is the placement of the letters. The blank space is asking for the slope of point A to point B, which means that the coordinates of A are your y₁ and x₁ values and the coordinates of B are your y₂ and x₂ values.

Put them in the equation like this:

\frac{2 - (-1)}{-1 - (-4)}

2 - (-1) is a double negative, so it becomes 2 + 1, which is 3.

-1 - (-4) turns into -1 + 4 for the same reason. The change in x is also 3.

\frac{3}{3} = 1, so the slope of line AB is 1.


Using the same method, we can solve the next three problems.

Coordinates of B: (-1, 2)

Coordinates of C: (5, 1)

Slope: \frac{1 - 2}{5 - (-1)} = \frac{-1}{5+1} = -\frac{1}{6}

The slope of BC is -1/6.


Coordinates of C: (5, 1)

Coordinates of D: (1, -3)

Slope: \frac{1 - (-3)}{5 - 1} = \frac{1 + 3}{5 -1} = \frac{4}{4}, so the slope is 1.


Coordinates of A: (-4, -1)

Coordinates of D: (1, -3)

Slope: \frac{-1 - (-3)}{1 - (-4)} =  -\frac{2}{5}

The slope is -\frac{2}{5}.


Quadrilateral ABCD is not a parallelogram because it has only one pair of parallel opposite sides.

I hope this was helpful. Have a great day. :D

5 0
3 years ago
If the adult dosage of the medicine is 180 milligrams (mg), what is 1/3 of the adult dose?
Assoli18 [71]

Answer:

60 miligrams

Step-by-step explanation:

You multiply 0.33 with 180

4 0
2 years ago
Read 2 more answers
need it asap... a survey conducted in a school showed that 65% of the students walked to school. The remaining students took bus
AlexFokin [52]
This means 35% used buses. 3+4=7, so 20% took school buses while 15% took public buses. 65%-35%=30% who mean the difference, so 30% is 360. You ask what is 15% -- that's half of that difference, or 180.
8 0
3 years ago
Read 2 more answers
X3+2x2+7 by x+3 which synthetic division expression would give the correct result
IRISSAK [1]

Answer:

x^2-x+3 (r -2)

Step-by-step explanation:

x^3+2x^2+7 / x+3

-3 | 1 2 0 7

       -3 3 -9

_________

     1 -1 3 -2

This means x^2-x+3 with a remainder of -2

7 0
3 years ago
Jace owns a small business selling bagels. He knows that in the last week 37 customers paid cash, 6 customers used a debit card,
pantera1 [17]

Answer:

268

Step-by-step explanation:

11/37=credit card

11/37=x/900

900 divided by 37=24.3

24.3 times 11=267.56

round it to 268

7 0
2 years ago
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