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3 years ago

How do I write an equation in point slope form

2 answers:

7 0

The formula is
y-y1 = m(x-x1)
First, find the slope using the points (- 2, 3) and (3, - 1) : m = 3-(-1)/-2-3 = 4/-5 = -4/5
Next, pick a point -- for example, (- 2, 3) . Using this point, x1 = - 2 and y1 = 3 .
Therefore, the equation of this line is y - 3 = -4/5 (x - (- 2)) , which is equivalent to y - 3 = - 4/5(x + 2) .

valentina_108 [34]3 years ago

5 0

Hi there...
the point slope formula is
y-y1=m(x-x1)

where y and x represent any points
y1 and x1 represents known points
and m represents the slope

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1 year ago

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2 years ago

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Step-by-step explanation:

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2 years ago

Determine which is the appropriate approach for conducting a hypothesis test. Claim: The mean RDA of sodium is 2400mg. Sample da

pshichka [43]

Answer:

c) use the student t- distribution.

t = 22.23

t= 22.23 > 1.645 at 149 degrees of freedom

Null hypothesis is rejected

Step-by-step explanation:

Step (i):-

Given sample size 'n' =150

The mean RDA of sodium is 2400mg

The mean of the Population 'μ' = 2400mg

Given mean of the sample x⁻ = 3400

The standard deviation of the sample 'S' = 550

Step(ii):-

Null hypothesis :H₀: μ = 2400

Alternative hypothesis : H₁: μ ≠2400

The test of statistic

$t = \frac{x^{-}-mean }{\frac{S}{\sqrt{n} } }$

$t = \frac{3400-2400}{\frac{550}{\sqrt{150} } } = 22.23$

degrees of freedom γ= n-1 = 150 -1 =149

t₀.₉₅ = 1.645

Conclusion:-

t= 22.23 > 1.645 at 149 degrees of freedom

Null hypothesis is rejected

The mean RDA of sodium is not equal to 2400mg

7 0

2 years ago

the graph below has the same shape as the graph g(x)=x^2 but it is shifted down 3 units and to the left 2 units what is this equ

sukhopar [10]

Answer:

Option (C)

Step-by-step explanation:

Parent function g(x) = x² [Vertex at the origin (0, 0)]

When this function is shifted 3 units down,

Rule to be followed,

g(x) → g(x) - 3

So, g'(x) = x² - 3

Followed by 2 units shift to the left,

Rule to be followed,

g'(x) → g'(x + 2)

F(x) = (x + 2)² - 3

Therefore, Option (C) will be the answer.

3 0

3 years ago