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kifflom [539]
3 years ago
13

Write an equation for the line that passes through the points (1,4) and (2, -4).

Mathematics
2 answers:
Tom [10]3 years ago
6 0

Answer:

-8

Step-by-step explanation:

We can use the formula [ y2-y1/x2-x1 ] to solve.

-4-4/2-1

-8/1

-8

Best of Luck!

Alchen [17]3 years ago
3 0

First of all, Let's find the slope because we need it on the formula for finding the y-intercept.

m = y2 - y1 / x2 - x1

From the points given in the question,

x1 = 1

x2 = 2

y1 = 4

y2 = -4

Plugging in the above formula,

➝ m = -4 - 4 / 2 - 1

➝ m = -8 / 1

➝ m = -8

Now finding the y-intercept:

➝ y = mx + b

And if we put in the values from our first point (1, 4) we get

➝ 1 = -8 (4) + b

➝ 1 = -32 + b

➝ b = 1 + 32

➝ b = 33

Required equation of the line:

➝ y = -8x + 33

Carry On Learning !

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Answer:

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Step-by-step explanation:

Lets solve!

We have to find out how much of the candle needs to be burned!

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The candle must burn 8cm in 4 hours!

Lets find out how much the candle burns in 1 hour.

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The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.

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3 years ago
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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A(n) ___________________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categori
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Answer: c. Nominal

Step-by-step explanation:

Level of measurement determines the nature of description .

The four levels of measurements scales are

1. Nominal scale

  • Categorize the data on the basis of the quality such as Gender, color, etc.

2. Ordinal scale

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3. Interval scale

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4. Ratio scale

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5 0
3 years ago
PLEASE HELP ASAP. RIGHT ANSWER WILL GET BRAINLIEST
dimulka [17.4K]
Given
P(1,-3); P'(-3,1)
Q(3,-2);Q'(-2,3)
R(3,-3);R'(-3,3)
S(2,-4);S'(-4,2)

By observing the relationship between P and P', Q and Q',.... we note that
(x,y)->(y,x)  which corresponds to a single reflection about the line y=x.
Alternatively, the same result may be obtained by first reflecting about the x-axis, then a positive (clockwise) rotation of 90 degrees, as follows:
Sx(x,y)->(x,-y)    [ reflection about x-axis ]
R90(x,y)->(-y,x)    [ positive rotation of 90 degrees ]
combined or composite transformation
R90. Sx (x,y)-> R90(x,-y) -> (y,x)

Similarly similar composite transformation may be obtained by a reflection about the y-axis, followed by a rotation of -90 (or 270) degrees, as follows:
Sy(x,y)->(-x,y)
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=>
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So in summary, three ways have been presented to make the required transformation, two of which are composite transformations (sequence).
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