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DanielleElmas [232]
3 years ago
13

Look at this function:

Mathematics
2 answers:
noname [10]3 years ago
6 0

Answer:

As x coordinate of function is : -6, -4, -2, 0

And y coordinate of function is : -13, -9, -5,-1

If a function is linear it means

Slope will be same everywhere.

Slope between two points(x_{1},y_{1}) \text{and} (x_{2}, y_{2})<em> </em>is = \frac{y_{2}-y_{1}}{x_{2} -x_{1}}

= \frac{-9+13}{-4+6}=\frac{4}{2}=2\\\frac{-5+9}{-2+4}=\frac{4}{2}=2\\\\\frac{-1+5}{0+2}=\frac{4}{2}=2\\\\\frac{-1+13}{0+6}=\frac{12}{6}=2

So, between any two points slope are same i.e equal to 2.So it is a linear function.

So, Mark is right that the function is linear.


Rom4ik [11]3 years ago
5 0
X values are increasing by 2
y values are increasing by 4
Mark is correct
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Please help &lt;3
Aleksandr [31]

Answer:

x =3

Step-by-step explanation:

3(4x + 4) = 2(5x+9) - 12

First step is to open the brackets by multiplying. It becomes

3×4x + 3×4 = 2×5x + 2×9 -12

12x + 12 = 10x + 18 - 12

Collecting like terms on the right hand side and left hand side of the equation, it becomes

12x -10x = 18 -12 -12

2x = -6

Negative sign on the right hand side of the equation overwhelms the positive sign on left hand side of the equation. It becomes

2x = -6

x = -6/2 = -3

Checking

3(4×-3 + 4) = 2(5×-3+9) - 12

-24 = -12-12= -24

So x = -3

3 0
3 years ago
Step 1: 12x – 15 – 12x = 7x + 20
stealth61 [152]

Step-by-step explanation:

step 1. 12x - 15 - 12x = 7x + 20

step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)

step 3. -15 = 7x + 20 (adding like terms)

step 4. -35 = 7x (subtract 20 from both sides)

step 5. this step is incorrect.

step 6. -5 = x ( divide both sides by 7)

step 7. x = -5 (put the variable first).

5 0
3 years ago
Please help!!! Will give brainly if correct!! 50 points
Contact [7]
Total 175 students.
102 students go to movies at least twice a week and 73 students either go 1 times or not going to the movies.

So
Students go 0-1 times per week = 73/175 = 0.4172 = 41.71%

Answer: last option
41.71%
8 0
3 years ago
Read 2 more answers
A mattress store in Stafford purchased a mattress at a cost of $255 and marked it up 100%. Later on, Cassie bought the mattress.
skad [1K]

Answer: 278.18

sorry if it's wrong

Step-by-step explanation: if you divide 255 by 11 you get 23.18181818181

so if you simplify you get 23.18 so that is the tax plus the original payment which is 278.18

8 0
2 years ago
Read 2 more answers
Whats the answer &amp; how do I solve it ?
Veseljchak [2.6K]

Answer:

Area of rectangle = 225/2 or 112.5

Step-by-step explanation:

Given,

Consider a rectangle ABCD.

Let AC be a diagonal of rectangle of length   = 15

In triangle  ABC.

Sin 45° =height/hypotenuse   {SinФ = height / hypotenuse}

Here, hypotenuse = diagonal of rectangle ( i.e AC = 15)

And height is AB

Therefore, sin 45° = AB/AC

or sin 45° = AB / 15

or 1/√2 = AB /15

AB = 15/√2

Similarly we can find Base (i.e BC) using cosine.

Cos 45° = Base/Hypotenuse

Cos 45° = BC / AC

or  1/√2 = BC/15

BC = 15/√2

Hence we got length of rectangle , AB= 15/√2

And width of rectangle , BC = 15/√2

Therefore, area of rectangle = Length × Width

Area of rectangle = 15/√2  ×   15/√2  = 225/2

Hence, area of rectangle = 225/2 = 112.5

6 0
3 years ago
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