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Sloan [31]
3 years ago
14

The following graph shows the relationship established by a car dealership between the sale price of a particular car model and

the age of the car.
Write the equation for the line of best fit shown on the graph.

Y=

Mathematics
2 answers:
PolarNik [594]3 years ago
6 0

Answer:

y = -2444.4444x+19000

Step-by-step explanation:

Pick two points along the line to find the slope

(0, 19000) and (4.5, 8000)

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

        = (8000-19000)/(4.5-0)

         =-11000/4.5

           = -2444.44444444

We know the y intercept (where it crosses the y axis  (x=0))  (0, 19000)

We can write an equation using y = mx+b

y = -2444.4444x+19000

djverab [1.8K]3 years ago
4 0

Using 2 points: (0,19,000) and (3.25, 11,000)


First find the slope by putting the change in Y over the change in X:

Slope = ( 19000 - 11000) / (0 - 3.25)

Slope = -2462.54


The Y intercept is the 1st Y value = 19,000


The equation becomes: y = -2461.54x + 19000

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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

Option C is correct.

Step-by-step explanation:

Given the dimension of the surfaces i.e length, width and height of podium. we have to calculate the surface area of the victory podium.

As Surface area of cuboid is 2(LW+WH+HL)

In the given figure, the upper cuboid has dimension

L=2.5 ft. , W=1.5 ft, H=1.5 ft

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\text{Area of bottom face of upper cuboid=}L\timesW=2.5\times1.5=3.75ft^2

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Dimensions of lower podium are

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\text{Surface area=}2(7.5(1.5)+1.5(1.5)+1.5(7.5))=49.5ft^2

Now, Surface area of podium included bottom is

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ANSWER: 7.53

Step-by-step explanation:

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leonid [27]

Answer:

As an equation: 15 × x = -75

Solved: x = -5

Step-by-step explanation:

15*x = -75

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