dayannacastro0308
dayannacastro0308 dayannacastro0308
  • 01-12-2020
  • Mathematics
contestada

pls help
which equation describes the motion of the train?
d=50t
d=25t
d= t- 175
d= t + 25​

pls helpwhich equation describes the motion of the traind50td25td t 175d t 25 class=

Respuesta :

arodri04
arodri04 arodri04
  • 01-12-2020

Answer:

d = 25t

Step-by-step explanation:

pick tow points on the line, the easier for me is (0,0) and (2,50).  The equation options are given in slope intercept form such as y = mx + b; where m is the slope and be is where the line intercepts the y-axis.  We can see that "b" is zero because the line intercepts the y-axis at 0 (b = 0).

to find the slope you use the two points for the m

m = [tex]\frac{(y2 - y1)}{(x2 - x1)}[/tex]  = [tex]\frac{(50 - 0)}{(2 - 0)}[/tex]  = 25 is the slope

Therefore the equation should d = 25t

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