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AleksAgata [21]
3 years ago
5

Find the slope of the line that passes threw (3,11) and (8,9)

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0

Step-by-step explanation:

First thing you do is fine gradient. To do this use the formula:

\frac{y 1 - y2}{ x1 - x2}

\frac{9 - 11}{8 - 3 }  =  \frac{ - 2}{5}

Then use this formula to find equation of the line:

y = mx + c where m is the gradient

Then Substitute in a point and the calculated gradient value to get c

11 = -0.4 x 3 + c

c = 12.2

Therefore the equation of the line is:

y = -0.4x + 12.2

Lady_Fox [76]3 years ago
4 0

Answer:

y = -0.4x + 12.2

Step-by-step explanation:

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NEED THIS ASAPGraph each inequality
Usimov [2.4K]

Answer: <em>here are the graphs. the one with the sloped line is </em>5x - 3y ≤ -15.<em> the one with the straight line is </em>y ≥ 4.

3 0
2 years ago
12 =7 solve. <br><br><br><br> Bro wat does this mean i dont get it please help someone :\
Mkey [24]

Answer:

if it says 12x = 7

the u will divide the 12 on both sides and x will equal to 7/12,,

if it simply says 12 = 7 then put false cause that's not true!!

4 0
2 years ago
The lines y=x+1 and y=-x-3 are graphed.<br> What is the solution to the system?<br><br> Please help
Fed [463]

Answer: (-2, -1)

Step-by-step explanation: Since these lines are already graphed, we are looking for their point of intersection. This point where the two lines intersect will represent the <em>x</em> and <em>y</em> that is the solution to this system of equations.

The two lines intersect in quadrant III

where <em>x</em> and <em>y</em> are both negative.

When finding the coordinates of a given point,

be very careful with your signs.

Let's just do a quick review on the coordinate system. On the x-axis, left means negative and right means positive and on the y-axis, down means negative and up means positive.

So to find the coordinates for this point, we start at the origin.

Then we move to the left 2 and down 1 so that's (-2, -1).

So the solution to this system is (-2, -1).

7 0
3 years ago
A runner increased his average speed from 250 to 300 m/min, and he
Fittoniya [83]
Average speed = 300 m/min
Time = 1 min
Distance = Average speed x Time
Distance = 300 m/min x 1 min
Distance = 300 m
Hope this help <3
Help me and mark my answer as brainliest plz
8 0
2 years ago
The price of a notebook in 2012 is $2000. In 2013, its value decreased by 30%. In 2014, its value decreased by 30% of its value
jeyben [28]

Answer:

The value of the notebook at the end of 2013 is $980

Step-by-step explanation:

First, find 30% of 2,000. To do so you need to convert 30% into a decimal by dividing it by 100.

30% ⇒ 0.30

Now multiply 0.30 by 2,000 to find 30% of 2,000.

2,000 × 0.30 = 600

Subtract 600 from 2,000 to find the price of the notebook in 2013.

2,000 - 600 = 1,400

Now find 30% of 1,400 using the same process.

1,400 × 0.30 = 420

Subtract 420 from 1,400 to find the price of the notebook in 2014.

1,400 - 420 = 980

8 0
2 years ago
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