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3 years ago

Write the equation for the line that passes through (2, -4) and is

Mathematics

1 answer:

Kryger [21]3 years ago

3 0

Answer: y= x-2

Step-by-step explanation:

Perpendicularity entails the slope of line a is -1 divided by the slope of line b

m1= (-1/m2)

From y=Mx +c

We compare with x-4y=7

y=(1/4)x-7/4

Meaning m2= 1/4

m1= -1/(1/4)= -1*4= -4

((y-y1)/(x-x1))= ((y2-y1)/(x2-x1))=m1

x1= 2, y1= -4

((y-(-4))/(x-2))= -4

((y+4)/(x-2))= -4

Cross multiply

y+4= -4(x-2)

y= x-2

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Nat2105 [25]

Answer:

4/10 is equivalent to 2/5

Step-by-step explanation:

because 4/10 is written as 0.4 in decimal form and so is 2/5, which means they are equivalent

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3 years ago

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pochemuha

You just need to solve for when $y=0$ :

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3 years ago

the table shows the ratio between the number of books ordered and their cost. 7,14 8,16 9,18. find equivalent ratios when the nu

Nadya [2.5K]

Answer:

Number of Books. Cost (dollars). 7 14. 8 16. 9 18. Find equivalent ratios when the number of books ordered is 1, 2, and 3. Write them as ordered pairs in the form...

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How would i graph <br> y=− 5/2x-3<br> and<br> x−y=−4<br> (_,_)

SashulF [63]

Given:

The system of equations is

$y=-\dfrac{5}{2}x-3$

$x-y=-4$

To find:

The graph of the given system of equations and its solution.

Solution:

The table of values for $y=-\dfrac{5}{2}x-3$ is

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Plot these points and connect them by a straight line.

The table of values for $x-y=-4$ is

x y

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0 4

Plot these points and connect them by a straight line.

From the below graph it is clear that the lines intersect each other at point (-2,2).

Therefore, the solution of given system of equation is (-2,2).

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3 years ago

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emmasim [6.3K]

Answer:

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Step-by-step explanation:

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