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miskamm [114]
3 years ago
5

I need help!!! Please help me!!

Mathematics
1 answer:
RUDIKE [14]3 years ago
4 0
I think the second one
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PLEASE HELP FAST :(
Ket [755]
Write the equation of the line passing through the points (-7,5) and (-5,9):
y-5= \dfrac{9-5}{-5-(-7)} (x-(-7)) \\ y-5= \dfrac{4}{2}(x+7) \\ y-5=2(x+7).
You also have another two points (-3,13) and (-1,17). Look whether coordinates of these points satisfy the line equation:

1. For (-3,13) you have
 13-5=2(-3+7) \\ \{8=8\};

2. For (-1,17) you have
 17-5=2(-1+7) \\ \{12=12\}.

Conclusion: All four points lie on the line y-5=2(x+7), so <span>the relationship shown by the data is linear.</span>

Answer: Correct choice is D.<span />



4 0
3 years ago
Solve for y<br> a. 4x + 5y = 25
AfilCa [17]

Answer:

y = -4/5x + 5

Step-by-step explanation:

In order to solve for y, we need to isolate the variable. First, let's subtract 4x on each side. After doing said step, we should now have this equation:

5y = -4x + 25

Next, we need to divide 5 on each side, giving us this new equation:

y = -4/5x + 5

There you go! Let me know if I did anything wrong ^-^

5 0
2 years ago
ALGEBRA 2 PLEASE HELP! QUICKLY!! I AM TERRIBLE AT ALGEBRA AND I HAVE LOADS OF STUFF TO Do TODAY CAN YOU PLEASE HELP ME WITH THIS
Genrish500 [490]
A) the posible roots of the function f(x)=x⁴-3x³-5x²+21x+22 are: 
=-1,+1,-2,+2,-11,+11,-22+22.

b)
one zero of the funtion can be: x=-1 ⇒y=0   (-1,0)

c)
other zero of the funtion is: x=-2 ⇒y=0  (-2,0)

d)
if x=0 then y=22   (0,22)

e) In the file is the graph. 


4 0
3 years ago
What is the average speed between 2 seconds and 8 seconds.
Gennadij [26K]
Add the two speeds together, then divide the two, this gives the average speed. Hope this was helpful!
7 0
3 years ago
Read 2 more answers
Find the equation of a line that passes the points (5, -9) and (0, -3)
kobusy [5.1K]

Answer:

y = -6/5x - 3

Step-by-step explanation:

Point Slope Form:  (y - y1) = m(x - x1)

<u>Step 1:  Find Slope</u>

m = \frac{y2-y1}{x2-x1}

m = \frac{-3 - (-9)}{0 - 5}

m = \frac{-3 + 9}{-5}

m = \frac{6}{-5}

m = \frac{-6}{5}

<u>Step 2:  Plug into Point Slope Form</u>

(y - (-3)) = -6/5(x - 0)

y + 3 - 3 = -6/5x - 3

y = -6/5x - 3

Answer:  y = -6/5x - 3

5 0
3 years ago
Read 2 more answers
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