Question

Which equation is in slope-y-intercept form?
3x + 4y = 7
b) x = 4y - 2
c) y = 3x -1
d) x + 4y -2

Answer 1

Step-by-step explanation:

a). Let's solve for x.

3x+4y=7

Step 1: Add -4y to both sides.

3x+4y+−4y=7+−4y

3x=−4y+7

Step 2: Divide both sides by 3.

3x/3=−4y+7/3

x=−4/3y+7/3

b)Let's solve for y.

x=4y−2

Step 1: Flip the equation.

4y−2=x

Step 2: Add 2 to both sides.

4y−2+2=x+2

4y=x+2

Step 3: Divide both sides by 4.

4y/4=x+2/4

y=1/4x+1/2

c)Let's solve for x.

y=3x−1

Step 1: Flip the equation.

3x−1=y

Step 2: Add 1 to both sides.

3x−1+1=y+1

3x=y+1

Step 3: Divide both sides by 3.

3x/3=y+1/3

x=1/3y+1/3

d)Let's simplify step-by-step.

x+4y−2

There are no like terms.

Answer 2

Step-by-step explanation:

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