Aand b have opposite directions, and they both have a magnitude of 7 what must be true about a and b

they are opposites and parallel :)

Step-by-step explanation:

quizlet... XD

D) They are opposite and parallel.

Step-by-step explanation:

Given:

There are two vectors "a" and "b" have opposite directions having the same magnitude of 7.

If the two vectors "a" and "b" have opposite directions mean one moves right and other moves left.

Which means they are opposite.

Here they have a same magnitude of 7. So they are parallel.

Therefore, the answer is D) They are opposite and parallel.

Sample Write the equation using slope and y-intercept in slope-intercept form, y = –275x + 3500. Then, substitute the x and y values of the point into the equation, 1850 = –275(6) + 3500. Simplify to see if both sides are equivalent. Yes, the instructor is correct because both sides are equivalent.