Question

Need help with these two questions linear relations.

Answer 1

b. y = -7x + 4

1. y = -7(-5)+ 4 = 35+4= 39

2. -24= -7x + 4

-28 = -7x

4 = x

3. y = -7(0)+4= 4

4. 0 = -7x+4

-4= -7x

4/7 = x

c. 3y - 5x = 15

1. 3y - 5(6)

3y-30=15

3y=45

y = 15

2. 3(-10)-5x=15

-30-5x=15

-5x = 45

x = -9

3. 3y-5(0)=15

3y=15

y=5

4. 3(0)-5x=15

0-5x=15

-5x=15

x=-3

Explanation: