Ok pls help me

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong