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aliina [53]
2 years ago
7

The line CD passes through the points C (2, -1) and D (1, 1). Which of the

Mathematics
1 answer:
inn [45]2 years ago
3 0

Answer:

<em>The equation of the straight line in point - slope form</em>

<em>y +1 = -2 ( x-2)</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given points are C( 2,-1) and D(1,1)

Slope of the line

     m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  } = \frac{1-(-1)}{1-2} = \frac{2}{-1} = -2

   m = -2

<u>Step(ii):-</u>

Equation of the straight line passing through the point ( 2,-1) and having slope

m =-2

y - y₁ = m ( x- x₁)

y - (-1) = -2 ( x-2)

y +1 = -2 ( x-2)

<u><em>Final answer:-</em></u>

<em>The equation of the straight line</em>

<em>y +1 = -2 ( x-2)</em>

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Answer:

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Step-by-step explanation:

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  m = (-4-0)/(0-2) . . . . matches the 2nd choice

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2 years ago
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Given the function rule f(x) = x^2 - 5x + 1, what is the output of f(-3)?
mojhsa [17]
 f(x) = x²<span> - 5x + 1

f(-3) = (-3)</span>² - 5(-3) + 1
<span>
f(-3) = 25


</span>--------------------------------------------------<span>
Answer: f(-3) = 25 (Answer C)
</span>--------------------------------------------------
4 0
3 years ago
An investment advisor believes that there is a 60% chance of making money by investing in a specific stock. If the stock makes m
inessss [21]

Answer:

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kolbaska11 [484]

Answer:

Step-by-step explanation:

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maximum: 38

lower quartile: 24

upper quartile:35

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the first number is the minimum, the last number is the maximum. the middle number "split" is the median.

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2 years ago
A swimming pool has an average depth of 1.6 m. It is 50 m long and 30 m wide. What is the volume?
Neko [114]

Answer:

2400m³

Step-by-step explanation:

50 * 30 * 1.6 =

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