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3 years ago

Select all the equations that represent functions where the range decreases as the domain increases.

Mathematics

1 answer:

taurus [48]3 years ago

3 0

A, C, and E.
you can check them by putting into y=mx+b form. if m is negative then as domain increases range decreases.

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Create a pattern with the rule n-4

aalyn [17]

You would make a table first, the top part, just start from zero and add every time. Hope this helps

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3 years ago

Write the function of this graph

Colt1911 [192]

Answer:

f(x) = -3/7x - 6

Step-by-step explanation:

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3 years ago

Karl makes 7 1/2 batches of cookies using 1 1/2 dozen eggs. Suppose Karl only

vredina [299]

Answer:

$5\ batches\ of\ cookies$

Step-by-step explanation:

we know that

Karl makes 7 1/2 batches of cookies using 1 1/2 dozen eggs

so using proportion

Find out how many batches of cookies could he make with a dozen eggs

step 1

Convert mixed numbers to an improper fraction

$7\frac{1}{2}=\frac{7*2+1}{2}=\frac{15}{2}$

$1\frac{1}{2}=\frac{1*2+1}{2}=\frac{3}{2}$

step 2

Applying proportion

Let

x ----> the amount of batches of cookies

$\frac{(15/2)}{(3/2)}\frac{batches}{dozen\ eggs}=\frac{x}{1}\frac{batches}{dozen\ eggs}\\\\x=\frac{15}{3}\\\\x=5\ batches\ of\ cookies$

5 0

3 years ago

Match the equation with its graph. -2/3x - -1/4y=1/3

Volgvan

If the equation is -(2/3) x - (1/4) y = 1/3, it is a straight line, so you can use some special points to identify the graph.

It is easier is you solve the equation for y:

(1/4)y = - 1/3 - (2/3) x

y = (-4/3) - (8/3)x

That is the slope -y-intercept form of the equation.

That means that the slope is -8/3, and the y-intercept is -4/3.

Use this points to identify the graph:

x = 0 => y = - 4/3 ---> (0, - 4/3)

y = 0 => x = - 1/2 -----> (-1/2, 0)

Now you can punt those two points on the graph and draw the line that joins them.

With this procedure you can find the graph of any straight line.

4 0

3 years ago

Among all positive numbers , whose sum is 12, find those for which the product of the two numbers and their difference is larges

Karolina [17]

Answer: The numbers whose sum equals 12 and whose product and difference is largest is 6 and 6

Step-by-step explanation:

numbers whose sum is 12

Sum =12 Product Difference Product- Difference

11 +1 11 10 1

10 +2 20 8 12

9 +3 27 6 21

8 +4 32 4 28

7 +5 35 2 33

6+6 36 0 36

The numbers whose sum equals 12 and whose product and difference is largest is 6 and 6

4 0

3 years ago