Write down all of the solutions (if any) to the following system of linear equations. Give your answer in parametric vector form, and show all of your work. + 2r2 + 2r1 + 4r2 + %3D 23 + 4r4 2r2 + 2r3 + 3r4 4. -2

Find the equation of the line through point (−6,−1) and perpendicular to the line y=−2/9x−6, in standard form Ax+By=C.Hint: try writing the equation in another form first, then put your equation in the form Ax+By=C

Solve the problem. Describe all solutions of Ax = b, where 2-5 31 A = -2 6-5 70 and b = 310 Describe the general solution in parametric vector form. -3 G -8-17-0

4. North Babylon High School had four members on their cross country team in 2014. Over the next several years, the team increased by an average of 6 members per year. The same school had 16 members in their orchestra in 2014. The orchestra saw an increase of 4 members per year. Write a system of equations to model this situation, where xrepresents the number of years since 2014. Graph this system of equations below.