PLEASE HELP Vector v has initial point (-2, -1) and terminal point (8, -5). Write v as a linear combination of the standard unit vectors i and j.

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4