Z varies directly as x^3 and inversely as y^3. If z=177 when x= 8 and y=9, find z if x=4 and y=8. (Round off the the nearest hundredth)

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!