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elixir [45]
3 years ago
9

Find the slope -5/4 4/5 -4/5

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

The slope of the line is \frac{4}{5} ⇒ B

Step-by-step explanation:

You can find the slope of a line using any two points on the line (x1, y1) 1nd (x2, y2) by using this rule m=\frac{y2-y1}{x2-x1}

<em>Let us use this rule to answer the question</em>

From the attached graph:

∵ The given line passes through points (-1, -2) and (4, 2)

→ That means point (x1, y1) = (-1, -2) and point (x2, y2) = (4, 2)

∴ x1 = -1 and x2 = 4

∴ y1 = -2 and y2 = 2

→ Substitute their values in the rule of the slope above

∴ m=\frac{2--2}{4--1}=\frac{2+2}{4+1}=\frac{4}{5}

∴ The slope of the line is \frac{4}{5}

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162.50 if this represented a 6.5% increase what is her monthly salary after the raise
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Answer:

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Step-by-step explanation:

Let s represent her old salary. Then we have ...

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6 0
2 years ago
Solve the equation for x by graphing -2x + 3 = -3(-x) - 2
adoni [48]

Answer:

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Step-by-step explanation:

There are a couple of ways to solve this. One is to graph the left side of the equation, graph the right side of the equation, and look for the point where those graphs intersect. It is at x = 1. The first attached graph shows this solution.

__

Another method for solving such an equation is to subtract one side from the other and look for the value of x that makes the resulting expression zero.

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A graphing calculator doesn't need to have this simplified. If it is simplified, it becomes ...

  -5x +5 = 0

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6 0
3 years ago
Solve the system 8y-5z=23 3y-2z=6<br><br> 100 POINTS
Hatshy [7]

Answer:

z = 21 ; y= 16

Step-by-step explanation:

first of all we have to isolate a variable.

In second expression we can obtain:

3y = 2z+6

y = 2/3 z + 2

now we have to substitute this value in the first equation and solve it

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now we have to substitute z in the second equation:

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6 0
3 years ago
Read 2 more answers
Find the area of a triangle with sides of length 6 and 7 and included angle 74°. (round your answer to one decimal place.)
Yanka [14]
We use this formula:
<span>Area = ½ • side 1 • sine (A) • side 2
</span>Area = <span>½ • 6 • sine (74) • 7
</span><span>Area = <span>21 • sine (74)
Area = 21*0.96126
Area = </span></span><span><span><span>20.18646 </span> </span> </span>
Area = 20.2 (rounded)
Source:
http://www.1728.org/triang.htm


5 0
3 years ago
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