3 years ago

-4y = 16 identify the slope and y intercept

Mathematics

2 answers:

Snezhnost [94]3 years ago

6 0

Answer:y=-4

Step-by-step explanation:

Shalnov [3]3 years ago

3 0

Answer:

zero slope

y-intercept at y = -4

Step-by-step explanation:

-4y = 16 (divide both sides by -4)

y = 16 / (-4)

y = -4

y = -4 represents a horizontal line that is parallel to the x-axis that crosses the y-axis at y = -4

hence the slope of a horizontal line is zero, and the y-intercept is -4

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t When you reverse the digitals in a certain number you increase its value by 27. Find the number if the sum fixes digits is 9.

TiliK225 [7]

The number=10x+y
we suggest this system of equations:
(10y+x)-(10x+y)=27
x+y=9 ⇒x=9-y

Can solve this system of equations by susbstitution method.
(10y+(9-y)-(10(9-y)+y)=27
10y+9-y-(90-10y+y)=27
10y-y+10y-y=27-9+90
18y=108
y=108/18
y=6

x=9-y
x=9-6
x=3

The number=10x+y=10(3)+6=36

Answer: the number is 36.

to check:
63-36=27
6+3=9

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Shkiper50 [21]

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Vitek1552 [10]

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