3 years ago

4x+12=-7y -y+12=4x PLS HELP!!!! Addition/ Elimination method

1 answer:

3 0

4×+7y=-12 __ -4x-y=-12 ________ 0x+6y=-24 , so you eleminated by it self 6y/6=-24/6 , you get : y=-4 and then you plug in 4x+7(-4)=-12 , that's your answer 4x-28 =-12 , you divided in both side 4x=-12+28 , 4x=16 , and then x=16/4 =4 , so x=4

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A line with the slope of -4 passes through the point (8,-3). What is the equation in point slope form

user100 [1]

Y=Mx + c
The slope is given already so it will be :
Y=-4x+c
Now you can find C by replacing the given points

-3=-4(8)+c

C=9

Final answer is :

Y= -4x+9

8 0

2 years ago

In a recent year, one United States dollar was equal to about 82 Japanese yen. How many Japanese yen are equal to $100? $1,000?

alexandr402 [8]

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$1,000·82=82,000
$10,000·82=820,000 :) hope this helps!

8 0

3 years ago

Read 2 more answers

Given f(x)=x^2-4x+5, what's the value when f(2)

Reil [10]

If you were to replace the x's with 2, your equation would turn into:

(2)^2-4(2)+5