Hello!
First of all, let's find the slope, which is the rise/run. We have the points (-4,-3) and (-2,0). To get the run there, we move to the left two units. We rise up three units as well. Therefore our slope is positive. We have rise/run, which is 3/2 as our slope.
Now, b is the y-intercept, or when our line intersects with the y-axis. We can see that it intersects at a y-value of 3.
We can write our equation below.
y=3/2x+3
I hope this helps!
3/4 + 4/5 =
15/20 + 16/20 = 31/20
= 1 and 11/20
Answer:
f(t)= 17- 50t/21
Step-by-step explanation:
distance covered after t hours= 50t miles
number of gal.=50t×1/21 =50t/21 gal.
f(t)=starting-consuming= remaining
= 17-50t/21
