Answer: a) What is a good scale to use for the y axis? -20 units.
(b) What is a good interval to use for the y axis?- 20 units
Step-by-step explanation:
A family is tracking its spending habits. Over the
past year, the grocery bill has ranged from $120 to $180.
We need to plot these points on a coordinate grid.
If we plot the grocery bills along the y-axis, and past years will be plotted along the x-axis.
So, a) Good scale to use for the y-axis will be
1 scale = 20 units
As 120 and 180 are both divisible by 20.
So, it will be a good scale to use for the y-axis.
b) Good interval to use for the y-axis:
It will be again of 20 units.
From 8:25 to 30 seconds past 8:29 is 4.5 minutes.
This means she rode her bike 3/4 mile in 4.5 minutes.
Calculate her speed per mile:
1 mile / 0.75 = 1.333
4.5 minutes * 1.333 = 6 minutes per mile.
She needs to ride 3.42 miles, so multiply distance by speed:
3.42 miles x 6 minutes per mile = 20.52 minutes.
0.52 * 60 = 31.2 seconds.
This means it will take a total of 20 minutes and 31 seconds to get from her house to school.
She left at 8:25, add her travel time:
8:25 + 20 minutes and 31 seconds = 8:45 and 31 seconds.
This is sooner than the time school starts so she makes it on time.
Answer:
You have to see for yourself on the picture we cannot see. But from these statements alone it's either the second or the fourth option.
Step-by-step explanation:
They are perpendicular because their slopes are equal - Doesn't make sense, they would be parallel not perpendicular
They are perpendicular because their slopes are negative reciprocals - Makes sense
They are not perpendicular because their slopes are equal - Makes sense but it does not explain their relationship as well as the statement above
They are not perpendicular because their slopes are not negative reciprocals - Makes sense since that's how perpendicular lines work.
Conclusion, since we can't see the lines. You have to see for yourself on the picture we cannot see. But from these statements alone it's either the second or the fourth option.
If you add a picture I can narrow it down.
According to my calculations the answer is 13/25 hope this helps