Which equation represents a proportional relationship? 1. y = 7x – 3
2. y = 150x
3. y = 21x
4. y = 2x + 1 (please put an explnation

4

Step-by-step explanation:

Let's solve for x.

2x+1=y

Step 1: Add -1 to both sides.

2x+1+−1=y+−1

2x=y−1

Step 2: Divide both sides by 2.

2x

2

=

y−1

2

x=

1

2

y+

−1

2

x=

1

2

y

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

me! what did you put for this question?

step-by-step explanation: