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Daniel [21]
3 years ago
9

What is the slope of the line through (1,-1)(1,−1)left parenthesis, 1, comma, minus, 1, right parenthesis and (5,-7)(5,−7)left p

arenthesis, 5, comma, minus, 7, right parenthesis?Which ordered pair is a solution of the equation? 5x-2y=185x−2y=18
Mathematics
1 answer:
Alexeev081 [22]3 years ago
6 0

Answer:

None of the points is a solution

The question doesn't look logical correct, check closely

Step-by-step explanation:

With the points ;

(1,-1)(1,−1)

The slope is = ( -1-( -1))/( 1-1)= infinity

Similarly if you do same with

5,-7)(5,−7) ; the slope would be infinity

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The coordinate grid shows three points P, Q, and R:
Elden [556K]

Answer:

P=(-6,-2)

Q=(-6,-6)

R=(4,-6)

5 0
3 years ago
Look at this system of equations.<br> 4x+3y=33<br> 2x+3y=21<br> What is the value of x+y?
Maurinko [17]

Answer:

x = 6

y = 3

x + y = 9

Step-by-step explanation:

(Step 1)

Isolate one of the variables in one of the equations. This will allow you to solve by substitution in the following steps.

2x + 3y = 21                             <----- Original equation

3y = -2x + 21                            <----- Subtract 2x from both sides

y = (-2/3)x + 7                          <----- Divide all terms by 3

(Step 2)

Substitute the new equation into the untouched equation and isolate the "x" variable.

4x + 3y = 33                                 <----- Original equation

4x + 3((-2/3)x + 7) = 33                <------ Substitute manipulated equation

4x - 2x + 21 = 33                          <------ Multiply 3 by terms in parentheses

2x + 21 = 33                                 <------ Subtract terms with variables

2x = 12                                         <----- Subtract 21 from both sides

x = 6                                             <----- Divide both sides by 2

(Step 3)

Plug the value of "x" into one of the equations to find the value of "y".

4x + 3y = 33                               <----- Original equation

4(6) + 3y = 33                             <----- Plug 6 in for "x"

24 + 3y = 33                               <----- Multiply

3y = 9                                         <----- Subtract 24 from both sides

y = 3                                           <----- Divide both sides by 3

(Step 4)

Since you now know the value of both variables, you can add them together to find your final answer.

x = 6

y = 3

x + y = ?

6 + 3 = ?

9 = ?

3 0
2 years ago
Find the maximum value of the function <br><img src="https://tex.z-dn.net/?f=%20-%208%20%2B%202x%20-%204x%20%5E%7B2%7D%20" id="T
Mkey [24]

Answer:

x = \frac{-b}{2a}

Step-by-step explanation:

Start by using P.E.M.D.A.S.

-8 is a 2x is b and -4x^{2} is c.

7 0
3 years ago
Can some one help me with this too
Ivan

Answer:Sure thing, But what do you need help with? And whatever you need help with maybe just maybe I will help you with whatever you need help with.

Step-by-step explanation:

8 0
3 years ago
Find the equation of the line
GenaCL600 [577]
Y=2/3x+4
Hope this helps
7 0
3 years ago
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