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alexdok [17]
3 years ago
9

What the slope of(-4,4) (-9,6) ​

Mathematics
2 answers:
Anestetic [448]3 years ago
7 0

Answer:

-2/5

Step-by-step explanation:

1. 4-6 = -2

2. -4- -9 = 5

3. -2/5

Marat540 [252]3 years ago
3 0

Answer:

-\frac{2}{5}

Step-by-step explanation:

slope formula is:

y2-y1/x2-x1

so we plug in the coordinates

(6-4)/(-9--4)

which is

2/-5

so the slope is

-\frac{2}{5}

Hope this helps :D Mark Brainliest please!!!

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Find the percent of decrease from $60 to $48. Round the percent to the nearest tenth if necessary.
Rom4ik [11]

Answer: 20%

Step-by-step explanation: Basically you find the difference which is twelve, and put it over the original amount which is 60. You get 1/5 which in percent form is 20%

3 0
3 years ago
What are the coordinates of the vertices of the pre-image given? ry= −x ◦ T1, −2(x, y) 
nataly862011 [7]
<h3><u>Answer:</u></h3>

Hence, the coordinates of pre-image are:

A(1,6) , B(0,4) , C(3,4) , D(2,6)

<h3><u>Step-by-step explanation:</u></h3>

We have to find the  coordinates of the vertices of the pre-image given?

Ry= −x ◦ T_1, −2(x, y)

i.e. we have to find the composition of reflection along the line y=-x and translation with the rule:

(x,y) → (x+1,y-2)

Now we have coordinates of A",B",C" and D" as:

A"(-4,-2)

B"(-2,-1)

C"(-2,-4)

D"(-4,-3)

Now we are asked to find the coordinates of the pre-image.

Also when any point is reflected along y=-x then the point is transformed to:

(x,y) → (-y,-x)

Let A,B,C and D are the points of the pre-image.

Hence, the coordinates of the pre-image are given as:

so, the transformation is given as:

A→A'→A"

B→B'→B"

C→C'→C"

D→D'→D"

Where A',B',C',D' represents the transformation after translation and A",B",C",D" represents the transformation after reflection as well.

The coordinates of A' are (2,4)

B' are (1,2)

C' are (4,2)

and D' are (3,4)

Now, the coordinates of pre-image are given as:

A'(x,y)  → A(x-1,y+2)=A(1,6)

B'(x,y)  → B(x-1,y+2)=B(0,4)

C'(x,y)  → C(x-1,y+2)=C(3,4)

and D'(x,y)  → D(x-1,y+2)=D(2,6)

Hence, the coordinates of pre-image are:

A(1,6) , B(0,4) , C(3,4) , D(2,6)

4 0
3 years ago
Y=2x+3<br>4x+y=33<br>substitution form<br>(x, y)
galina1969 [7]
(5,13)

I hope the answer will help you in the solution if you want any question no hesitation

6 0
4 years ago
Which statement is true about the parts of this expression?
Ipatiy [6.2K]

7.5y - z/9 + 50 + 2y

Okay, so it would be best to organize and simplify this expression: 9.5y -z/9 + 50

Alright, now let's eliminate some answers.

True or false: The constant is 7.5. This is <em>false. </em>7.5 is a coefficient, 50 is a constant.

True or false: The coefficients are 7.5 and -9. This is <em>false. </em>Sure, 7.5 is a coefficient, but -9 is not. Actually, z/9 is also equal to (1/9)z, so <em>technically </em>1/9 is the coefficient.

True or false: The variables are x and y. This is <em>false. </em>Where is x? Nonexistent.

True or false: The like terms are 7.5y and 2y. This is <em>true. </em>When we simplified the equation, we first combined like terms. 7.5y and 2y are like terms and therefore able to be combined. That's how we got 9.5y.

The answer, I believe, is D. Hope this helps!

5 0
3 years ago
What is the graph of the inequality? 3x ≤ 2y - 7
BlackZzzverrR [31]

Answer:

graph is attached below.

Step-by-step explanation:

Given : equation 3x ≤ 2y - 7

We have to plot the graph for the given inequality.

Consider the given inequality 3x ≤ 2y - 7

To plot the graph we first convert inequality to equality.

then equation becomes, 3x = 2y - 7  

We find the points to plot this line,

at x = 1

⇒ 3(1) = 2y - 7

⇒ 3 = 2y - 7

⇒2y = 10

⇒ y = 5

at x = 3

⇒ 3(3) = 2y - 7

⇒ 9 = 2y - 7

⇒2y = 16

⇒ y = 8

at x = 5

⇒ 3(5) = 2y - 7

⇒ 15 = 2y - 7

⇒2y = 22

⇒ y = 11

Thus,   points are (1 , 5) , (3,8) and (5 , 11)

Now we plot these points and obtained the graph of line 3x = 2y -7

For region to be shaded take a test point and check whether it satisfy the given given inequality or not.  

Let point be (-3, 0)

Substitute x= -3 and y = 0, we get

3(-3) ≤ 2(0) - 7

⇒ -9 ≤  - 7  (true)

Graph plot is as shown below.

3 0
3 years ago
Read 2 more answers
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