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FrozenT [24]
3 years ago
9

Find slope intercept form of 5x+8y=120 passing through (4,5)

Mathematics
1 answer:
yarga [219]3 years ago
5 0

Answer:

y=-(5/8)x+(15/2)  or  y=-0.625x+7.5

Step-by-step explanation:

The question is

Find the slope intercept form of the line parallel to the line 5x+8y=120 passing through (4,5)

step 1

Find the slope of the given line

we have

5x+8y=120

isolate the variable y

8y=-5x+120

y=-(5/8)x+15

The slope of the given line is m=-5/8

step 2

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

so

The slope of the parallel line to given line is m=-5/8

step 3

Find the equation of the line into slope intercept form

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

y=mx+b

we have

m=-5/8 and point (4,5)

substitute and solve for b

5=-(5/8)(4)+b

b=5+(20/8)

b=60/8=15/2=7.5

substitute

y=-(5/8)x+(15/2)

or

y=-0.625x+7.5

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L = 168/14, so the length is 12. Let's check our work.

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Hope this helped.

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Use each model to predict the life expectancy of residents of a country for which the average annual income is $80,000
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y =4.2436 + 0.0021\times (income) --- model 2

y =4.1393 + 0.0603\times (income) --- model 3

Given that the average annual income is $80,000;

We simply substitute 80000 for income in the equations of the three models.

So, we have:

<u>Model 1</u>

y =69.9352 + 0.1530\times (income)

y =69.9352 + 0.1530\times 80000

y =12309.9352

<u>Model 2</u>

y =4.2436 + 0.0021\times (income)

y =4.2436 + 0.0021\times 80000

y =172.2436

<u>Model 3</u>

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y =4.1393 + 0.0603\times 80000

y =4828.1393

Hence, the life expectancies are 12309.9352, 172.2436 and 4828.1393

Read more about linear models at:

brainly.com/question/8609070

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Jada made 6 cups of blueberry jam and divided the Jam in 4 containers. How much jam went in each container
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Step-by-step explanation:

Given,

Jada made blueberry jam = 6 cups

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1\frac{1}{2} cups of blueberry jam went in each container.

Keywords: fractions, division

Learn more about fractions at:

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  • brainly.com/question/1998796

#LearnwithBrainly

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