What is the effect on the graph of the function () = 1 when () is replaced with ( − 4) + 6? A) shifted 6 units left and 4 units down B) shifted 6 units right and 4 units up C) shifted 4 units left and 6 units down D) shifted 4 units right and 6 units up NEED HELP!!!

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?