Question

Help!! Please may someone answer this!

Answer 1

Answer:

a) y will increase by 4 because we can clearly see that y is directly proportional to x

b) same answer and same reason

c) same as a)

Answer 2

(I) y = x

y = x+4
y+4 = x+4
y = x+4-4
y = x

Y increases by four to satisfy x=y

(II) y = 5x

y = 5(x+4)
y+20 = 5x+20
y = 5x-20-20
y = 5x

Y increases by 20 to satisfy y=5x

(III) y = 2x+3

y = 2(x+4)+3
y+8 = 2x+8+3
y = 2x+8-8+3
y = 2x+3

Y increases by 8 to satisfy y=2x+3





Hope, it helps you ☺️