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liraira [26]
3 years ago
13

Which is an equation for the line that contains (-2,5) and has a slope of -7 ?

Mathematics
1 answer:
Misha Larkins [42]3 years ago
4 0

Answer:

<h3>y = -7x - 9</h3>

Step-by-step explanation:

The standard from of equation of a line is expressed as;

y = mx+c

m is teh slope = -7

c is the intercept

Get the intercept by substituting m = -7 and the point (-2, 5) into the equation;

y = mx+c

5 = -7(-2) + c

5 = 14 + c

c = 5-14

c = -9

Substitute m = -7 and c = -9 into the expression y = mx+c

y = -7x - 9

Hence the required equation of the line is y = -7x - 9

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Please help me, I have no idea what the equation for the new path is. <br><br> Thank you!!
Citrus2011 [14]
First, find the slope of the initial line; 

m=(y₁-y₂)/(x₁-x₂) 

m=(4-0)/(11-8) 
m=4/3 

If two lines are parallel, the slope is the same although the intercept can differ. 

If this parallel lines passes through the point (4, 5); 

y=(4/3)x+c <-- plug in coordinates to solve for c
5=(4/3)(4)+c 
(15/3)=16/3+c 
(15/3)-(16/3)=c 
-1/3=c 

Therefore, the final equation should be y=4/3x-1/3

Hope I Helped :) 
8 0
3 years ago
Please help with this question
aleksandr82 [10.1K]

Answer:

D) -9/4

Step-by-step explanation:

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5 0
3 years ago
Lenny is planning to cut down a pine tree. He has parked his truck 90 feet away from the base of the tree and wants to make sure
Veronika [31]

Well, if the elevation is 45 degrees, the height of the tree and the distance to the truck are the same.


The elevation is more than that, so the distance to the truck is less than the height of the tree. 


The only answer that reflects that is D.

7 0
3 years ago
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Inessa05 [86]

Answer:

I would say A

Step-by-step explanation:

8 0
3 years ago
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5x^2=11x-2 quadratic equation
hjlf

Given data:

The given equation is 5x^2= -11x-2.

The given equation can be written as,

\begin{gathered} 5x^2=-11x-2 \\ 5x^2+11x+2=0^{} \\ 5x^2+10x+x+2^{} \\ 5x(x+2)+1(x+2)=0 \\ (5x+1)(x+2)=0 \\ x=-\frac{1}{5},\text{ x=-2} \end{gathered}

Thus, the values of x are x=-1/5, and x= -2.

4 0
1 year ago
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