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soldi70 [24.7K]
3 years ago
5

What is the slope of the line that passes through the points (-4,-4) and (9,4)

Mathematics
2 answers:
max2010maxim [7]3 years ago
5 0

Answer:

8/13

Step-by-step explanation:

(−4,−4);(9,4)

(x1,y1)=(−4,−4)

(x2,y2)=(9,4)

Use the slope formula:

m=

y2−y1

x2−x1

=

4−−4

9−−4

nlexa [21]3 years ago
5 0

Answer: 8/13

Step-by-step explanation:

m = \frac{y_{2}-y_{1}  }{x_{2} -x_{1} }

m = \frac{4 -(-4) }{9-(-4) }

m = \frac{4 +4 }{9+4 }= m = \frac{8}{13 }

Slope is 8/13

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Solution should have the same rate of change if it’s parallel
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What is the equation of the quadratic graph with a focus of (−4, seventeen eighths ) and a directrix of y = fifteen eighths
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Standard form for a parabola:
( x - h )² = 4 p ( y - k )
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y = ( x + 4 )² + 2
or general form: 
x² + 8 x - y + 18 = 0 
5 0
3 years ago
Which of the following is an integer?<br> 95.2<br> 73<br> 54<br> 41<br> -26
HACTEHA [7]

Answer:

95.2 is not an integer

and other are integers

7 0
3 years ago
in the previous question, what is the distance from a side of the triangle to the incenter? can someone also explain how to get
denis23 [38]
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4x-1=6x-5
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Answers:
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5 0
3 years ago
Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The
ExtremeBDS [4]

Answer:

  • 800 kph
  • 600 kph

Step-by-step explanation:

<u>Equation</u>

Let s represent the speed of the faster plane. Then its travel time is ...

  time = distance/speed = 3600/s

travel time for the slower plane is ...

  time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

  3600/(s -200) -3600/s = 1.5

<u>Solution</u>

Multiplying by (2/3)s(s -200), we get ...

  2400(s) -2400(s -200) = s(s -200)

  s^2 -200s -480000 = 0 . . . . . . . . . . rewrite in standard form

  (s -800)(s +600) = 0 . . . . . . . . . . . . . factor

The positive value of s that makes a factor zero is s = 800.

<u>Conclusion</u>

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

<em>Check</em>

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

6 0
3 years ago
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