Write an equation where y varies directly as x

Answers

Y=kab is the equation ^_^
the equation is y=kx
Formula for solving that equation is
y=kx find k then substitute k to check the equation if it is equal
EQUATION: y = kx

28 = k(7)

\frac{28}{7} = \frac{7k}{7}

k = 4 <== ANSWER

*Where k is the constant

No

Step-by-step explanation:

9373389272629383293933739327293272827282263644002175349463393489448494389483393373837373837393478494477449484794749SANA MAKA TULONG.

1. y= 28 when is x=7  y=kx 28=k(7) 28=7k       ...divide 28 by 7 k=4  Hence, the equation is y=4x  2.y=30 when x=8  y=kx 30=k(8) 30=8k          ...divide 30 by 8 k=15/4  Hence, the equation is y=15/4x   3. y=0.8 when x=0.4  y=kx 0.8=k(0.4) 0.8=0.4k         ...divide 0.8 by 0.4 k=2  Hence, the equation is y=2x.

1. 300000000

Step-by-step explanation:

10000000000+2000000000

1. k= 28/7=4
y= 4x

2. k= 30/8 = 15/4 or 3 3/4
y=3 3/4x

3. k= .7/.4 = 7/4 or 1 3/4
y= 1 3/4x

4. k= .8/.5 = 8/5 or 1 3/5
y= 1 3/5x

5. k= 400/25 =16
y= 16x

6. k= 63/81 =7/9
y= 7/9x

7. k= 200/300 =2/3
y= 2/3

8. k= 1/2
y= 1/2x

9. k= 48/6 =8
y= 8x

10. k= 10/24 = 5/12
y= 5/12x
1)
Y=kx
12=3k
3k/3=12/3
k=4
Y=4x
Y=4(12)
Y=48
2)
A=kb
5=1k
1k/1=5/1
k=5
A=5b
2=5b
5b/5=2/5
b=0.4
THE EQUATION IS: y = kx


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