D=-0.5t + 7I REALLY NEED HELP ASAP I WILL MARK BRAINLIEST TYTY
1 answer:
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Answer:37.2 sec
Step-by-step explanation:
Given
Joel takes 81 sec for 14 mile long track
speed of joel mi/min=10.37 mi/min
Jason takes 69 sec for 14 mi track
so jason speed is
if both starts from same spot in opposite direction then
where x is distance covered by Joel
then x=6.44 miles
therefore time required
The slopes of two parallel lines must be identical.
We have slope
, so the slope for the parallel line be the same.
Now, to find an equation that also passes through the given point, we use slope-point form,
, where our point 
is substituted for 
.
Now, we convert to slope-intercept form as such.
And we are done. :) We can verify graphically that these are indeed parallel lines. See attached.
We have slope
Now, to find an equation that also passes through the given point, we use slope-point form,
Now, we convert to slope-intercept form as such.
And we are done. :) We can verify graphically that these are indeed parallel lines. See attached.