Answer:
D
Step-by-step explanation:
A function is written in slope intercept form (y = mx + b)
so we first have to find the y-intercept or "b" in the question it states that they started off 400 miles away so that would be the "b" then you would need to find the m or slope and in the question it says after seven hours they where 50 miles away and 400 minus 50 is 350 so they traveled 350 miles in 7 hours so you then have to divide 350 by 7 and you get the slope 50 but since it is to find out how far away they are we make it negative giving you the equation y = -50 +400. Hope you found this helpful :D
Answer:
C) x^2 + 3x
Step-by-step explanation:
Answer:
7789 i think this is the answer
Step-by-step explanation:
I would make a table and plug in values for "x" in the equation to find f(x) or y
x = 0

(there is a rule that when the exponent is 0, the result is 1)

f(0) = 2 (0,2)
x = 1



f(1) = 6 (1,6)
You could do more points.
But these two points shows that the y-intercept (the y value when x = 0 or (0,y)) is 2, and that the graph is increasing.
Your answer is B
Answer:
3
Step-by-step explanation:
3 is closer to 0