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charle [14.2K]
2 years ago
6

Plewse help me idk how to do it (20 points)!!

Mathematics
2 answers:
finlep [7]2 years ago
7 0
It’s liner function
Marina86 [1]2 years ago
3 0

The explicit formula for a straight line is written as y = Mx + b, where m is the slope and b is the y intercept.

The y intercept is the y value of where the line crosses the x axis. On the above picture the line crosses the x axis at -2, so the y intercept is -2

Use 2 points in the line for the slope:

Slope = change in y over the change in x:

(0,-2) (6,0)

Slope = (0- -2) / (6-0) = 2/6 = 1/3

Answer: y = 1/3x-2

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By selling a table for sh.56, gain is as much as percent as its cost in dollars. What is the cost price? By selling a table for
sergij07 [2.7K]

The cost price of the table is $40.

<h3>What is Gain ?</h3>

Gain is the amount gain by selling the product at a higher price than its cost.

Let the cost of the table is $ x

The percentage gain is x%  (as given in the question)

Cost price = ?

It is known that

Step 1 : Gain = ( selling Price - Cost Price) * 100 / Cost Price

Selling price = 56

Cost Price = $ x

Therefore substituting the value

x = (56 - x) * 100 / x

x² = 5600 - 100x

x² +100x -5600 = 0

Step 2 : Factorizing

x² + 140x - 40 x -5600 = 0

x( x+14 ) -40( x +14) = 0

( x - 40)(x +14) = 0

x = $40

Therefore the cost price of the table is $40.

To know more about Gain

brainly.com/question/23385214

#SPJ1

3 0
2 years ago
Can the product of 4 and any number always be written as a sum of two equal addends
enot [183]

Answer: Yes

Step-by-step explanation:

Example : 4 x 2 = 8

8 = 4×4

Thus proven YES.

hope this helps also mark me brainliest :)

Good luck

6 0
2 years ago
A sales associate at a local Boutique sold a jacket for $200 less a 10% discount what is the discount on the jacket
Nikitich [7]
It's probably $190 I hope this helped you
3 0
2 years ago
Which number lines have points that represent additive inverses? Check all that apply.
jeka94
<h3>2 Answers: B and D</h3>

===================================================

Explanation:

Choice B is one answer because -2 and 2 are additive inverses that add to -2+2 = 0

Choice D is a similar story. We have -5+5 = 0

In general, if x is some number then -x is its additive inverse. So we can say x+(-x) = 0 or -x+x = 0. In short, additive inverses add to 0.

8 0
3 years ago
Read 2 more answers
What is the inverse of the function f(x) = 2x + 1?
BaLLatris [955]

Answer:

f^{-1} = \frac{x-1}{2}

Step-by-step explanation:

f(x) = 2x+1

<em>Replace it with y</em>

y = 2x+1

<em>Exchange the values of  x and y</em>

x = 2y+1

<em>Solve for y</em>

x = 2y+1

<em>Subtracting 1 from both sides</em>

2y = x-1

<em>Dividing both sides by 2</em>

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

<em>Replace it by </em>f^{-1}

So,

f^{-1} = \frac{x-1}{2}

3 0
3 years ago
Read 2 more answers
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