Question

Does anybody know the answers to these please

Answer 1

1. 3/-1=-3; y=-3x-5; (-2, 1) 2. y=2x+5; y=x+2; (-1, 3) 3. see below

Explanation:

1. 2/4=1/2

y intercept is 2

y=1/2x+2

3/-1=-3

y intercept is -5

y=-3x-5

p.o.i is (-2, 1)

2. 2/1=2

y intercept is 5

y=2x+5

1/1=1

y intercept is 2

y=x+2

p.o.i is (-1, 3)

3a. y is total items and x is weeks

3b. y = 4x+13, y=8x+5

3c. see below; intercept is (2, 21)