Make u the subject of the formula: v2 = u2 + 2as

make y the subject of the formula: a = xy + yz

V2=u2+2as
v2=2(u+as)
v2/2=u+as
u=as - v

A=xy+yz
A=y(x+z)
A/y=x+z
1/y=x+z/A

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!