tip by using chian rule

Step-by-step explanation:

x² + y² = y

2x + 2y(dy/dx) = dy/dx

2x = dy/dx - 2y(dy/dx)

Take dy/dx common:

2x = (dy/dx)(1 - 2y)

dy/dx = 2x/(1 - 2y)

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.