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Alex73 [517]
3 years ago
9

If X + 2Y =18 , how am I supposed to find the slope if I don't know how to find the x intercept?

Mathematics
2 answers:
Lyrx [107]3 years ago
8 0
X+2y=18
-x      -x
2y=-x+18
/2   /2  /2

y=mx+b
y=-1/2x+9


the slope is -1/2
ch4aika [34]3 years ago
3 0
You solve for y. you dont need the x intercept 
x+2y=18
2y=-x+18
divide everything by two
y=-1/2x+9
the slope would be -1/2 
since in the equation y=mx+b 
m represents the slope which in this case would be -1/2
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Answer:

3) 0.72

Step-by-step explanation:

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4 years ago
please help me to solve this equation i tried to look it up on multiple websites but they only confused me 9/4-1/(2x)=4/x
Tcecarenko [31]
Solve for x
so assuming that the fractions are
(9/4)-(1/*2x))=4/x then
get all x on one side
add 1/(2x) to both sides
9/4=(4/x)+(1/(2x))
make common denomators with x and 2x
common denomenator is 2x
4/x times 2/2=8/(2x)
9/4=8/(2x)+1/(2x)
add
9/4=9/(2x)
make common denomators with 4 and 2x
common denomator is 4x
9/4 times x/x=9x/(4x)
9/(2x) times 2/2=18/(4x)
9x/(4x)=18/(4x)
multiply both sides by 4x to clear fraction
9x=18
divide both sides by 9
x=2
4 0
3 years ago
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