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3 years ago

A proportional relationship is formed when y=16 and x=-4 what is the value of x when y=4?

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

8 0

Answer:

-1

Step-by-step explanation:

The correct model to use for a proportional relationship is y = kx, where k is the constant of proportionality.

If y = 16 when x = -4, then this model becomes 16 = k(-4). Solving for k, we get k = -16/4, or k = -4.

Thus, the specific formula to use here is y = -4x.

Now if y = 4, 4 = -4x, and x must therefore be x = -1.

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Which translation for: y = (x+3)^2+4 If you can't see the picture zoom in.

Savatey [412]

Answer:

The answer is B.

Step-by-step explanation:

The original graph of y = x^2 has a vertex at (0,0)

The formula for graph translations is y = (x-#)^2+#

The number inside the parentheses is a horizontal translation.

So, we are given y = (x-(-3))^2+#

The vertex of the graph moves 3 points left, since the number is negative (-3).

The number at the end of the equation is a vertical translation.

So, we are given y = (x+3)^2+4

The vertex of the graph moves 4 points up, since the number is positive (4).

The new vertex is at (-3,4)

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3 years ago

WHY WOULDNT YOU GUYS HELP ME THIS IS MY 20TH TIME POSTING THIS AND I HAVE 0 ANSWERS IN ALL OF THEM PLSSS PLS HELP QUICK PLSSS :’

marysya [2.9K]

Answer:

I think it is E and C

Step-by-step explanation:

E) y - 6 = -7/4(x+5)

(-5,6)

6-6=-7/4(0)

0=0

(-1,-1)

-1-6=-7/4(-1+5)

-7=-7/4(4)

-7=-7

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3 years ago

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3 years ago

victor went for a run last week. It was 3.5 km long. Terrell went for 3 runs last week. eachrun was 1,250 m long. which person r

Karolina [17]

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3 years ago

Read 2 more answers

A professor obtains SAT scores and freshman GPA for a group of 15 college students with the hope that she can predict GPA using

kramer

The hypothesis test analyzes the null and alternative hypothesis of the

plausibility of a correlation between the SAT scores and GPA.

The hypothesis test that would be appropriate is a hypothesis test that checks that the slope of the regression line is not zero.

Reasons:

The data collected by the professor = The scores of the college students

The type of scores collected = SAT scores, and GPA scores

The test that would be appropriate for the example, is the test for the

existence of a significant linear relationship between the input variable

(the SAT scores) and the output variable (the GPA)

The test is known as the test for the slope of the regression line

The equation of the regression line is; Y = B₀ + B₁·X

Where;

Y = The value of the GPA score (The dependent variable)

X = The value of the SAT score (The independent variable)

The test aims to check that the value the slope of the regression line is

much different from zero, such that there exist a correlation.

Learn more about hypothesis test for linear regression here:

brainly.com/question/13938204

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2 years ago