Find the value of x or y so that the line through the points has the given slope. 7.(-2,-4) and (4,y); slope: 2
8.(9,-7) and (x,-8); slope: 1/5
9.(5,0) and (x,-2); slope: 1/2
10. (x,7) and (4,-4); slope: -11

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

b. 2 and 4

step-by-step explanation:

idk wbu

step-by-step explanation: