Jasmine is running in a race. She runs 1,500 meters in 7 minutes. She starts out fast, slows down toward the middle of the race, and then finishes by sprinting to the finish line. Choose the sketch of a graph that exhibits the qualitative features of the relationship between the number of minutes Jasmine has been running and the distance she has run.(1 point)
Responses
A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. The coordinates of a plotted closed circle are left parenthesis 0 comma 0 right parenthesis, and a second closed circle is plotted at left parenthesis right 7 comma 1,500 parenthesis. A downward concave curve connects the two points. The curve passes through left parenthesis 1 comma 600 right parenthesis, left parenthesis 3 comma 1200 right parenthesis, and left parenthesis 5 comma 1400 right parenthesis.
Image with alt text: A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. The coordinates of a plotted closed circle are left parenthesis 0 comma 0 right parenthesis, and a second closed circle is plotted at left parenthesis right 7 comma 1,500 parenthesis. A downward concave curve connects the two points. The curve passes through left parenthesis 1 comma 600 right parenthesis, left parenthesis 3 comma 1200 right parenthesis, and left parenthesis 5 comma 1400 right parenthesis.
A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. A straight line connects the following two plotted points: left parenthesis 0 comma 0 right parenthesis and left parenthesis 7 comma 1,500 right parenthesis.
Image with alt text: A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. A straight line connects the following two plotted points: left parenthesis 0 comma 0 right parenthesis and left parenthesis 7 comma 1,500 right parenthesis.
A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. A curve connects 2 plotted points. The coordinates of a plotted closed circle are left parenthesis 0 comma 0 right parenthesis, and a second closed circle is plotted at left parenthesis 7 comma 1500 right parenthesis. An upward concave curve connects the two points. The curve passes through left parenthesis 6 comma 800 right parenthesis.
Image with alt text: A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. A curve connects 2 plotted points. The coordinates of a plotted closed circle are left parenthesis 0 comma 0 right parenthesis, and a second closed circle is plotted at left parenthesis 7 comma 1500 right parenthesis. An upward concave curve connects the two points. The curve passes through left parenthesis 6 comma 800 right parenthesis.
A coordinate plane shows the x-axis, labeled as Number of Minutes, ranging from 0 to 10 in increments of 1, and the y-axis, labeled as Number of Meters, ranging from 0 to 1600 in increments of 100. A curve with a closed circle at both the ends is shown. The coordinates of a plotted closed circle are left parenthesis 0 comma 0 right parenthesis. An upward curve extends from this point and increases steeply to left parenthesis 4 comma 900 right parenthesis, then levels off slightly, and then increases steeply to left parenthesis 7 comma 1500 right parenthesis.
1 answer
To choose the correct graph that represents Jasmine's running performance based on the qualitative features provided, we can analyze the situation:
Fast Start: Jasmine begins quickly, suggesting that initially, the distance will increase rapidly.
Slow Middle: Jasmine slows down toward the middle of the race, indicating that the distance increases at a slower rate during this part.
Sprinting Finish: At the end of the race, she speeds up to finish strong, meaning the distance will again increase rapidly towards the finish line.
Given this description, the graph we look for should start steeply, flatten out in the middle (to represent her slowing down), and then steepen again towards the end (to represent her sprinting).
From the options provided:
Option 1 (Downward concave curve): This represents slowing down effectively and hitting peak distance at the end, which aligns with Jasmine's performance.
Option 2 (Straight line): This implies a constant speed, which does not match Jasmine's varying pace.
Option 3 (Upward concave curve): This suggests constant acceleration, which doesn't reflect the slowing down in the middle.
Option 4 (Upward curve that steepens): This shows an initial steep increase, a leveling off, and a final steep increase which closely resembles the pattern described.
Considering all features, Option 1 is the best representation that delineates all the qualitative features of Jasmine's running progress throughout the race.
1 answer