Can you answer these questions? Im doing them on my own but I need to check if they're right

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

If two lines form congruent alternate interior angles with a transversal, then the lines

If its non of them tell me..valerie took a day-trip. she drove from her house for a while and took a coffee break. after her coffee break, she continued driving. after  2  hours of driving after her coffee break, her distance from her house was  210  miles. her average speed during the whole trip was  60  miles per hour.valerie created the equation  y−210=60(x−2)  to represent this situation, where  xx  represents the time in hours from her coffee break and  yy  represents the distance in miles from her house.which graph correctly represents valerie's distance from her house after her coffee break?