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Vera_Pavlovna [14]
3 years ago
11

What is the equation of the line that passes through the point of intersection of the lines y = 2x − 5 and y = −x + 1, and is al

so parallel to the line y equals start fraction one over two end fraction x plus four question mark?
Mathematics
1 answer:
castortr0y [4]3 years ago
8 0

Answer:

y = \frac{1}{2}x - 2

Step-by-step explanation:

Given lines,

y = 2x - 5,

y = -x + 1

Subtracting these two equations,

0 = 3x - 6

\implies 3x = 6

\implies x = \frac{6}{3}=2

By first equation,

y=2(2) -5=4-5 = -1

Thus, point of intersecting would be (2, -1).

Now, the equation of a line is y = mx + c,

Where,

m = slope of the line,

So, the slope of the line y=\frac{1}{2}x+4 is 1/2.

∵ two parallel lines have same slope.

Hence,

Equation of the parallel line passes through (2, -1),

y+1=\frac{1}{2}(x-2)

y+1=\frac{1}{2}x - 1

y = \frac{1}{2}x - 2

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Find the average rate of change of f(x)= x^3 over the interval -2 to 3
Travka [436]

48.012001  is the answer to this problem

7 0
3 years ago
Which two equations represent a nonlinear function?
irina [24]

Answer:  See below.

Step-by-step explanation:

The formatting is likely incorrect for these two options:

y=(x−1)2, and  

y = ( x − − 1 ) 2

I'll assume they were meant to be:

y=(x−1)^2, and  

y = ( x + 1 )^2

In this case they would be non-linear, since y depends on the value of x^{2}

Use a "^" sign to indicate raised to a power:  x^2 means x^{2}.  

y=(x−1)2 means y = 2x - 2

y=(x−1)^2 means y = (x-1)^{2}

8 0
2 years ago
Ramani has 3 times as many two -rupee coins as she has five- rupee coins . If she has in all a sum of Rs.77 , then how many coin
maksim [4K]

Answer:

21- two rupee coins

7- five rupee coins

Step-by-step explanation:

3x(2)=5x

6x=5x

6x+5x=77

11x=77

x= 7

thus 3x(2)means she has 21-2 rupee coins and 7-5rupee coins.

6 0
3 years ago
Which of the following equations is written in slope-intercept form? 2x + 4y = 8 4y = -2x + 8 y = -1/2x + 2 x = -2y + 4
Marysya12 [62]
Slope intercept form y = mx +b
so answer is

<span>y = -1/2x + 2</span>
3 0
3 years ago
Or x. -2(3x – 4) – X – 3 = 33 ver: Submit Answer​
BigorU [14]

Answer:

-2(3X-4) - X -3 = 33

-6X+8 - X -3 = 33

-7X +5 = 33

-7X = 33 -5

-7X =28

- X= 28÷7

-X = 4

SO X = - 4

Step-by-step explanation:

7 0
2 years ago
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