Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 51 km/h. After five hours, the velocity of the car is 59 km/h.Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the car at different times. Show your work and define the variables used. (5 points)
Part B: How can you graph the equation obtained in Part A for the first six hours? (5 points)
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Answer 1
Answer:
It's not obvious here, but you're being asked to find a linear equation for the velocity of the car, given two points on the line that represents this velocity.
Find the slope of the line segment that connects the points (3 hr, 51 km/hr) and (5 hr, 59 km/hr). Graph this line. Where does this line intersect the y-axis? Find the y-value; it's your "y-intercept," b.
Now write the equation: velocity = (slope of line)*t + b
The units of measurement of "slope of line" must be "km per hour squared," and those of the "y-intercept" must be "km per hour."
Part B: Start with the y-intercept (calculated above). Plot it on the vertical axis of your graph. Now label the horizontal axis in hours: {0, 1, 2, 3, 4, 5, 6}. Draw a vertical line through t=6 hours. It will intercept both the horiz. axis and the sloping line representing the velocity as a function of time. Show only the part of the graph that extends from t=0 hours to t=6 hours.
Dawn draws 1 card, replaces it, and draws another card. Is it more likely that she draws 2 red cards or 2 face cards?
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Two red cards pls trust
A submarine is at 756 feet how many feet will it need to rise up to be at the surface
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The submarine will need to rise up 756 to be at surface
How is the value of 2 in the number 542 different than the value of 2 in the number 324?
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You see the 2 in 542 is in the ones place as in 324 is in the tenth place now 1 is way different then 10 or 2 and 20 whatever term suits your temptations I hope this comes in handy for you if so and this helps you please rate this the brainiest answer XD
The 2 in 542 is in the ones place which mean there are 2 ones where as the 2 in 324 is in the tens place which means it 2 tens or 20.
Which is greater 1/3 or 1/8
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1/3= 0.333333
1/8=0.125
So definitely 1/3 is bigger.
1/3 is greater because it is equal to 0.33333...... 1/8 is equal to 0.125. :D
56 is 80% of what? How did you get your answer?
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You would divide 56 by 80. Which would give you 0.7. So 56 is 80% of 70
Which is The most reasonable estimate for The measure of The angle
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90 degrees. A right angle like this one is always 90 degrees.