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3 years ago

How can I graph y= -4x+5 Can you make a table of the numbers

1 answer:

7 0

You can graph the function rule by, first, getting a coordinate plane labeled with the scales. You then plot the y-intercept, in this case, it's +5. Then, you use your slope to find the direction of the line. Since your slope is -4 (or -4/1), you have to go DOWN (because it's negative). So, you go down from +5 four times and go over to the right one time (because of your denominator in -4/1), which would give you the point (1, 1). Then, you keep doing this until you have formed enough points to create your line.

Table of Numbers:

x y

0 5

1 1

2 -3

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Work out the nth of this sequence:

Gekata [30.6K]

Answer:

$a_n = -11 +3(n -1)$

Explanation:

The $n$ th term of an arithmetic sequence is explicitly defined as $a_n = a_1 +d(n -1)$ where $a_1$ is the first term of the sequence and $d$ is the the common difference.

From the given first five terms of the sequence we can see that the first term is $11$ so $a_1 = 11$ .

The common difference, $d$ , can be calculated by $a_n - a_{n -1}$ so we'll find the common difference of the given sequence by letting $n = 2$

$d = a_2 - a_{2 -1} \\d = a_2 -a_{1} \\d = -8 -(-11) \\ d = -8 +11 \\ d = 3$ .

Now let's plug everything we know.

$a_1 = -11$

$d = 3$

$a_n = -11 +3(n -1)$

6 0

2 years ago

Help please! 15 points!

Ivan

It’s 3!! I checked on a calculator :)

5 0

3 years ago

This is what I need to know

I am Lyosha [343]

$\bf \begin{array}{ccllll}
\$&minutes\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
920,000&46,000,000\\
x&1
\end{array}\implies \cfrac{920,000}{1}=\cfrac{46,000,000}{x}$
so solve for "x", to see how much is the company paying for the purchase of 1 minute

now, they're plan to sell the minute for 8cents, how much is the profit?
that is, the difference from their cost of the cents to the planned selling price.

bear in mind, is 46,000,000 minutes, so whatever value you get for 1minute,
you need to multiply it for 46,000,000 to get the actual cost.

and the revenue from the sell of 8cents per minute, is of course, 8 * 46,000,000

profit = revenue - cost

7 0

3 years ago

Megan and her sister are planning their

Yuri [45]

Answer: y = 12.50x + 45

Step-by-step explanation:

if x is the number of hours and you pay $12.50 per hour then we can come up the expression 12.50x

You will be charge $45 as an initial fee so it will be 12.50x + 45 and that has to equal the total cost which is y.

y = 12.50x + 45

7 0

3 years ago

I need help for this question

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

$12.00 - the total cost of 4 of equally priced gloves

$12.00 : 4 = $3.00 - the cost of 1 glove

The cost per glove is increased by $1.00. Therefore new cost of 1 glove is

$3.00 + $1.00 = $4.00

The total cost of 9 of gloves at the new price:

9 × $4.00 = $36.00

6 0

3 years ago