What would happen to the graph of a line if the equation y=1/3x + 1 is
changed to y = -3x+ 1?​

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Is this a polynomial function? i need to know asap