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2 years ago

Having trouble with this question. Can someone help me.

Mathematics

2 answers:

vodka [1.7K]2 years ago

4 0

For function one, the slope is already in mx+b form. The coefficient to x is the slope, so it is four in this case. For the second function we calculate the slope using rise over run. The rise is change in y and run is change in x, so 4/2= 2 slope. Four is greater than two so it has the greater rate of change. The answer is B

rewona [7]2 years ago

4 0

First function - y = 4x + 5
It is in the form mx + c

Slope ,m = 4

For second function
y - y1 / x - x1 = 10 - 6/ 3 -1 = 4/2 = 2
Slope = 2

So comparing them, the correct answer is B

Hope This Helps You!

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3 years ago

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B) y = 3 = 2х Is this relation linear or non-linear? Explain why.

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Answer:

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Step-by-step explanation:

Non- linear would look like this: K=2/3

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Why:

It all comes to what is proportional and what is not.

Hoped this helped!

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2 years ago

If five notebooks cost $5.25, how much would three notebooks cost? Show your work

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2 years ago

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What is the equation of the line that passes through the point (8, -4) and has a slope of 1/2

Eva8 [605]

Answer:

$y = \frac{1}{2}x - 8$

Step-by-step explanation:

1. Approach,

For this problem, the format of a line that will be used is, slope-intercept form;

$y = mx + b$

Where ( $m$ ) is the slope of the line, also known as the change in the line and $(b)$ is the y-intercept, or where the graph of the line intersects the y-axis. Since, in this problem, the slope of the line is given, all one has to do is substitute in a point on the given line and solve.

2. Finding the equation,

In this problem, the slope of the line is given. Therefore, to solve this problem, all one has to do is substitute in a point on the given line and solve.

$y = mx + b$

Substitute in the slope,

$y = \frac{1}{2}x + b$

Substitute in the point,

$-4 = \frac{1}{2}(8) + b$

Simplify,

$-4 = 4 + b$

Inverse operations,

$-4 = 4 + b\\-4\\\\-8 = b$

3. Putting it all together,

Now, that one has y-intercept, ( $-8$ ); use the given slope and the formula $y = mx + b$ , substitute in all the information.

$y = \frac{1}{2}x - 8$

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2 years ago

A function has a constant halving time. What type of function does this represent?

Anna71 [15]

The function which has a constant halving time is in the following form

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Where: A₀ is the initial amount
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3 years ago

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