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Vedmedyk [2.9K]
3 years ago
13

I'm having trouble figuring out what the equation is for the trend line and what the slope is

Mathematics
1 answer:
Talja [164]3 years ago
3 0

Answer:

The equation for the trend line would be y = -1/100x + 25

Step-by-step explanation:

In order to find the trend line, we first need to find the slope. To do so, we need to find two points on the line. The points we'll use are (0, 25) and (2500, 0). Next, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (0 - 25)/(2500 - 5)

m = -25/2500

m = -1/100

Now that we have this we can use the slope and the intercept in slope intercept form to model the trend line.

y = mx + b

y = -1/100x + 25

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Iteru [2.4K]
Distribute on both sides

2x - 8 = 6x + 12

Move x to one side

-20 = 4x

Divide by 4

-5 = x
8 0
3 years ago
Find the minimum value of the following equation:
Mandarinka [93]

Answer:

×=11

Step-by-step explanation:

2×-4×+27-5=0

-2×+22=0

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8 0
2 years ago
Los puntos de intersección de los gráficos de f(x)=x2+6x−7 y g(x)=4x−10
alisha [4.7K]

Answer:

Those graphs do not intersect.

Estes gráficos no se intersecciónan

Step-by-step explanation:

The intersection points are x for which:

f(x) = g(x)

In this question:

f(x) = x^{2} + 6x - 7

g(x) = 4x - 10

So

x^{2} + 6x - 7 = 4x - 10

x^{2} + 2x + 3 = 0

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this question:

x^{2} + 2x + 3 = 0

So a = 1, b = 2, c = 3

\bigtriangleup = b^{2} - 4ac = 2^{2} - 4*1*3 = -8

Sincce \bigtriangleup is negative, there are no solutions, which means that those graphs do not intersect.

7 0
3 years ago
Plz help. 20 points!!
saw5 [17]
(1) Addition property
(2) Multiplication property
6 0
3 years ago
Write the equation of a line
egoroff_w [7]

Answer:

0

Step-by-step explanation:

The answer is 0 I think

Hope it help

3 0
3 years ago
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