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Gre4nikov [31]
2 years ago
13

Does this graph represent a proportional relationship? How do you know?

Mathematics
2 answers:
Step2247 [10]2 years ago
6 0

Answer:

Yes. The graph represents a proportional relationship because it is a straight line. As x increases, y increases accordingly.

vesna_86 [32]2 years ago
5 0

Answer:

Yes

Step-by-step explanation:

It goes straight through the origin.

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What is the value of y=4x−2<br> when x=3<br> ?
MariettaO [177]

Answer:

y = 10

Step-by-step explanation:

y = 4(3) - 2

y = 12 - 2

y = 10

7 0
3 years ago
Read 2 more answers
If x + 2 is the only factor of the polynomial P(x),then P(2) is:
Levart [38]

Answer:

The answer is R(2).

Step-by-step explanation:

hope this helped!

4 0
2 years ago
A 50% DISCOUNT IF THE SWAETSHIRT COST $64.75, HOW MUCH DID ADAM PAY ROUNDED TO THE NEASRT HUNDERTHS
Yakvenalex [24]
Answer: $32.38

Explanation:

64.75 = 100%

So that mean 50% would be half of 64.75

64.75 ÷ 2 = 32.375
8 0
2 years ago
Suppose John is a high school statistics teacher who believes that scoring higher on homework assignments leads to higher test s
EleoNora [17]

Answer:

A. R2 = 0.6724, meaning 67.24% of the total variation in test scores can be explained by the least‑squares regression line.

Step-by-step explanation:

John is predicting test scores of students on the basis of their home work averages and he get the following regression equation

y=0.2 x +82.

Here, dependent variable y is the test scores and independent variable x is home averages because test scores are predicted on the basis of home work averages.

The coefficient of determination R² indicates the explained variability of dependent variable due to its linear relationship with independent variable.

We are given that correlation coefficient r= 0.82.

coefficient of determination R²=0.82²=0.6724 or 67.24%.

Thus, we can say that 67.24% of total variability in test scores is explained by its linear relationship with homework averages.

Also, we can say that, R2 = 0.6724, meaning 67.24% of the total variation in test scores can be explained by the least‑squares regression line.

3 0
3 years ago
3.<br><br><br> A. 0.052%<br><br> B. 5.2%<br><br> C. 5.4%<br><br> D. 105%
mylen [45]
I believe it is B :)
5 0
3 years ago
Read 2 more answers
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