At 0 seconds, the dolphin is 42 feet below the surface:
<span>x = 0, y = -42 </span>
<span>The y intercept = -42 (0,-42) </span>
x = the elapsed time in seconds
<span>y = depth of dolphin relative to the surface </span>
<span>The x intercept occurs when y = 0, and the y intercept occurs when x = 0 </span><span>
After 14 seconds, the dolphin is even with the surface (0 below the surface): </span>
<span>x = 14, y = 0 </span>
<span>
The x intercept = 14 (14,0) </span>
<span>The slope = (y2 - y1)/(x2 - x1) = 42/14 = 3. </span>
Therefore, the formula for this line, in slope intercept form is y = 3x - 42.
Answer:
Y = 3x + 1
Y = 3x - 1
Step-by-step explanation:
A system of equations will have no solution if the lines are parallel to each other. Two lines are parallel when they have the same slope. All of your given equations are in the slope-intercept form. Recall the slope-intercept form is y=mx+b, where m is slope and b is the y-intercept. Therefore, the two equations would be Y = 3x + 1 and Y = 3x - 1, which both have a slope of m=3.
Here's an example. We'll test the last set of data: 10, 15, 16, 16, 18, 19, 21, 25. The median is the average of the 2 middle data points: (16+18)/2 = 17. So far, so good, since the diagram shows a median of 17.
First Quartile: find the median of 10, 15, 16, 16; it is the average of 15 and 16, which comes to 15.5. Third quartile: find the median of 18, 19, 21, 25. It's 20. Does the graph show this? No. The First Quartile in the graph is 15, not 15.5 (but this is not very far off). The Third Quartile in the graph is 20, which matches. So, the fourth set of data might be an answer.
You must check out the other 3 data sets in the same manner. Pick the set that is most closely illustrated by the diagram.
Answer:
rate
Step-by-step explanation:
A rate is a ratio that compares two different quantities that have different units of measure.
Answer:
awnser is the first one or A
Step-by-step explanation: