Because if the exponent is an even number, x can also be -x. For example, -4^2=4^2 but -4^3 isn't the same as 4^3
Part A: The y-intercept is 665. It is starting at 0 on the x axis. The train starts 665 miles from it's destination, so the intercept is 665.
Part B: As x increases by 1, y decreases by 95. This slope can be shown as -95/1. The rate is 95 miles per hour, since the train covers 95 miles for every hour it travels.
Part C: The train would take 7 hours at the present rate to reach it's destination.
I’m not sure but I’m pretty sure I think it’s 11/4 = y/8b making a guess but I tried
Answer:
-3/7
Step-by-step explanation:
We can find the slope by
m = (y2-y1)/ (x2-x1)
= ( 2/7 - 5/7) / (2-1)
=-3/7 / 1
-3/7
Let X cones need to be sold for break even
Total cost of 12 cones =24
selling price for x cones = $2.5x
for break even 2.5x=24
That is x =24/2.5=9.6 cones (10 cones)
I hope this help