Answer:
Step-by-step explanation:
answer (B)
Answer:
c! :))
Step-by-step explanation:
i cant exactly remember how to explain it step by step, but all i remember is that i took a similar test not too long ago that had the same question!
Answer:
Step-by-step explanation:
(A) Since, the velocity can be calculated from the distance time graph, and we can see from the graph that it is constant at every point, thus the graph has the constant velocity.
(B) Average velocity is given by: .
(C) The velocity reflected in the graph is positive in nature.
(D) The point will show that the car is not moving means that the car will cover no more distance in any interval of time, but from the graph we can see that the distance is being covered at equal intervals of time and no such horizontal path is followed, thus, the car is always moving.
The parabola has 2 solutions (when y = 0. So x = -5 and x = -3)
And the discriminant is a positive value. (Since there are 2 solution or roots, that means the discriminant value must be positive)
- if you want to check to make sure it’s a positive value (visually the graph tells you it’s positive) you would find the equation of the curve then plug in the formula b^2-4ac