I am not sure about point slope, but I can find an equation in slope-intercept form and convert it, so y=mx+b, m=slope slope=(y1-y2)/(x1-x2) we have points (4,5) (-3,-1) (x,y) x1=4 y1=5 x2=-3 y2=-1 subsitute (5-(-1))/(4-(-3))=(5+1)/(4+3)=6/7 y=6/7+b sybsitute and solve for b (4,5) x=4 y=5 5=6/7(4)+b 5=24/7+b 5=35/7 subtract 24/7 from both sides 11/7=b y=6/7x+11/7 convert to the point slope form and find equivilent fraction since the question asks for 2 answers that are correct and only 2 of the equations have slope of 6/7 I can guess that the answers are B and C
![\frac{V_1}{V_2}=k^3 \\ \\ \frac{320 \ cm^3}{1080 \ cm^3}=k^3 \\ \frac{8}{27}=k^3 \\ k=\sqrt[3]{\frac{8}{27}} \\ \boxed{k=\frac{2}{3}} \Leftarrow \hbox{answer B}](https://tex.z-dn.net/?f=%5Cfrac%7BV_1%7D%7BV_2%7D%3Dk%5E3%20%5C%5C%20%5C%5C%0A%5Cfrac%7B320%20%5C%20cm%5E3%7D%7B1080%20%5C%20cm%5E3%7D%3Dk%5E3%20%5C%5C%0A%5Cfrac%7B8%7D%7B27%7D%3Dk%5E3%20%5C%5C%0Ak%3D%5Csqrt%5B3%5D%7B%5Cfrac%7B8%7D%7B27%7D%7D%20%5C%5C%0A%5Cboxed%7Bk%3D%5Cfrac%7B2%7D%7B3%7D%7D%20%5CLeftarrow%20%5Chbox%7Banswer%20B%7D)
