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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. Y=?

2 answers:

AlekseyPX3 years ago

6 0

Answer:

y=-2,500x+19,000

Step-by-step explanation:

To write the equation, use y=mx+b. Look at the graph and identify m and b. b is the y-intercept and where the line crosses on the y-axis. Here it is 19,000.

To find the slope m, count the units from one point to another on the line. Identify the points on the line that go through grid line intersections. Count up/down then count right to form the ratio.

From point (0,19,000) to (2, 14,000). These points are -5,000 vertically and 2 horizontally. It forms the ratio -5,000/2 = -2,500. This is m.

So y=-2,500x+19,000

Dafna1 [17]3 years ago

6 0

Answer: y=2,500x+19,000

Step-by-step explanation:its right on plato

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What is the mode of the set numbers?: 8, 9, 2, 12, 12, 10, 14, 14, 5

Maksim231197 [3]

The number 12 and 14 are the modes .

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2 years ago

Which of the following is the sum of all the odd integers between 5 and 102?

STALIN [3.7K]

Answer:

2601

Step-by-step explanation:

The integers between 5 and 102 are

7, 9, 11, 13, 15, 17,19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101

The sum of the odd intergers between 2 and 105 can be calculated as follows

= (N + 1/2)^2

= (101 + 1 /2) ^2

= (102/2)^2

= 51^2

= 2601

Hence the sum of the odd intergers between 5 and 102 is 2601

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2 years ago

Annika is selling art prints at a comic convention.The convention charged her $50 for her table space, and she is selling her pr

asambeis [7]

If she wants to make 130.00, she should sell 90 prints. She is charged at first so she starts at -$50.00. And I don’t understand the first question.

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3 years ago

If each of the following questions were asked to a group of second graders, which question would NOT be a statistical question?

sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

[30 POINTS] Please help!!!

Len [333]

Answer:

Part 1) $y=1.5x+5$

Part 2) $y=-(2/3)x-(11/3)$

Part 3) $y=0.25x+2.75$

Part 4) $y=-2x+5$

Part 5) $y=0.5x-1$

Part 6) The graph in the attached figure

Step-by-step explanation:

Part 1) we have

$m=3/2=1.5$

$point(-2,2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-2=1.5(x+2)$

$y=1.5x+3+2$

$y=1.5x+5$

Part 2) we know that

If two lines are perpendicular

then

the product of their slopes is equal to minus one

so

$m1*m2=-1$

the slope of the line 1 is equal to

$m1=1.5$

Find the slope m2

$1.5*m2=-1$

$m2=-2/3$

Find the equation of the line 2

we have

$m2=-2/3$

$point(-7,1)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-1=(-2/3)(x+7)$

$y=-(2/3)x-(14/3)+1$

$y=-(2/3)x-(11/3)$

Part 3) we have

$m=1/4=0.25$

$point(1,3)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y-3=0.25(x-1)$

$y=0.25x-0.25+3$

$y=0.25x+2.75$

Part 4) we have

$m=-2$

$b=5$ -----> y-intercept

we know that

The equation of the line into slope intercept form is equal to

$y=mx+b$

substitute the values

$y=-2x+5$

Part 5) we have that

The slope of the line 4 is equal to $-2$

so

the slope of the line perpendicular to the line 4 is equal to

$-2*m=-1\\m=(1/2)=0.5$

therefore

in this problem we have

$m=0.5$

$point(-2,-2)$

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

substitute

$y+2=0.5(x+2)$

$y=0.5x+1-2$

$y=0.5x-1$

Part 6)

using a graphing tool

see the attached figure

3 0

2 years ago