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3 years ago

I need help remembering how to solve for the equation of best fit

1 answer:

8 0

Here is a step by step process of how to do the paper and pencil solution:1. Prepare a scatter plot of the data on graph paper.2. Using a strand of spaghetti, position the spaghetti so that the plotted points are as close to the strand as possible.

3. Find two points that you think will be on the "best-fit" line.

4. We are choosing the points (9, 260) and (30, 530).
You may choose different points. 5. Calculate the slope of the line through your two points (rounded to three decimal places).6. Write the equation of the line. 7. This equation can now be used to predict information that was not plotted in the scatter plot.
Question: Predict the total calories based upon 22 grams of fat.ANS: 427.141 calories

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Hector spent $41.75 for 2 DVDs that cost the same amount. The sales tax on his purchase was $3.15. Hector also used a coupon for

kykrilka [37]

Given:

Amount spent on 2 DVDs = $41.75

Sales tax = $3.15

Coupon = $1.00 off

To find:

The cost of each DVD.

Solution:

Let x be the cost of each DVD.

Then, cost of two DVDs = 2x

Amount spent of 2 DVDs = Cost of 2 DVDs + Sales tax - Coupon discount

$41.75=2x+3.15-1.00$

$41.75=2x+2.15$

$41.75-2.15=2x$

$39.6=2x$

Divide both sides by 2.

$\dfrac{39.6}{2}=x$

$19.8=x$

Therefore, the cost of each DVD is $19.8.

8 0

2 years ago

Simplify. (w5) I need this ASAP please

Ilya [14]

I’m pretty sure it’s w^25

5 0

3 years ago

Is y=2x-1 proportional

GREYUIT [131]

Since y=2x+1 does not pass through the origin (i.e. there exists the constant term of 1 ), the variables y and x are not directly proportional - though, they do have a linear relationship.

7 0

1 year ago

2 45 is a common multiple of 5 and 9 true or false

Strike441 [17]

Answer:

False

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Use two points to enter an equation for the function. Give your answer in the form a (b^x). In the event

melomori [17]

Answer:

LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right, good luck, i tried to give you the right answer so if its wrong then its the system!

Step-by-step explanation:

8 0

2 years ago