Answer:
We have the graph of position vs time (as you know, the derivatives of this graph are equivalent to the velocity, so the slope in each part of the graph is equal to the velocity of the car in that part, as steeper is the slope, larger is the velocity, and if the slope is positive, the velocity is positive, if the slope is negative, the velocity is negative)
A) Part 1 and part 2.
You can see that part 1 is a bit steeper than part 2, this means that in part 1 the velocity of the car is larger than in part 2.
B) Part 8 and part 9.
You can see that part 9 is steeper than part 8, meaning that the speed is larger in part 9 (in both parts the velocity is negative)
C) part 3, part 5 and part 7.
In these 3 parts we have a line parallel to the x-axis, this means that the velocity is zero in those 3 parts, but the position is different.
D) part 4 and part 6.
Part 4 is steeper than part 6, and part 4 has a positive slope while part 6 has a negative slope.
So the speed in part 4 is larger, and the sign of the velocity is different in each part, in part 4 we have positive velocity and in part 6 we have negative velocity.
QUESTION 1
We want to solve the linear equation,
–12 + 3b – 1 = –5 – b
Group similar terms:
3b+b=-5+1+12
Combine similar terms,
4b=8
Divide both sides by 4
b=2.
QUESTION 2
We want to find the equation of the given line that passes through
(-3,2) and (2,-1)
The slope of this line is
The equation is given by the formula:
We plug in the known values to obtain;
A=(l)(w)
a= (x+7)(x+9)
(distribute)
a= x^2 + 9x + 7x+ 63
a= x^2 + 16x + 63
Try putting the coronets (0,10) on the chart.
I got that by trying to figure out how they got $19 on week three, and I estimated that on week zero he had $10 to start out with.
So I tried 10 + 3 = $13 for week day one, 13 + 3 = $16 for week two, and 16 + 3 = $19 for week three. Which means I was correct in assuming that Juan had $10 to start out with.
(I'm sorry if my explanation wasn't clear enough, I'm very not good at math or explaining things, but I'm sure that this answer is correct... My 'strategy' to get said answer probably won't work well with other questions, though.)
Answer:
x=2x, y=5y
Step-by-step explanation:
180-108=72+120=192,360-192=168
