Jeopardy Chapter 2 Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Final Jeopardy

$100 Question from H1

$100 Answer from H1 14

$200 Question from H1

$200 Answer from H1 180

$300 Question from H1 Write an equation for the statement And solve: 15 more than twice a number is The difference of 10 and 2.

$300 Answer from H1 2x + 15 = 10-2 x = -3.5

$400 Question from H1 Y = 3x + 7 What is the range of this graph?

$400 Answer from H1 All real numbers

$500 Question from H1 Is the table a function? Why or why not? Input Output 5 2 12 10 13 15 19 Is the table a function? Why or why not?

$500 Answer from H1 Yes, every input has exactly one Output. Or you could plot them And it will pass the vertical line Test.

$100 Question from H2 Tell whether -8 is a real number, rational number, irrational number, integer or whole number. (List all that apply.)

$100 Answer from H2 Real number, rational number, integer

$200 Question from H2 Estimate the square root of 35 to the nearest integer.

$200 Answer from H2 6

$300 Question from H2 Simplify the expression: 35(r – 2)+r2 –5(r2 -10r)

$300 Answer from H2 -4r2 + 85r - 70

$400 Question from H2 Solve for x: 10(x + 2) – 18 (x + 3) = 32x

$400 Answer from H2 x = -17/20

$500 Question from H2 Concordia students have to pay 400 RMB a year for lunch plus 10 RMB for a meal that includes a drink, and chair. Visitors have to spend 15 RMB per meal plus 8 RMB for a drink and 5 RMB to rent a chair. Assuming everyone gets a meal, drink, and chair each time they come, how many times does a visitor need to come for the cost to be the same as a Concordia student coming that many times? At How many times does it start to become cheaper for the visitor?

$500 Answer from H2 X= 400/18 = 22.222222 times it will Be equal 23 times, it starts to be become cheaper For the visitor

$100 Question from H3 Solve the proportion for p:  

$100 Answer from H3 P = -2/11

$200 Question from H3 36 is what percent of 54?

$200 Answer from H3 66 2/3%

$300 Question from H3 12 is 20% of what number?

$300 Answer from H3 60

$400 Question from H3 You made 1395 RMB for tutoring Your little brother for 4.5 hours for His math Final. At this rate. How Much will you earn if you tutor him For 7 hours?

$400 Answer from H3 2,170 RMB

$500 Question from H3 The formula for Volume of a sphere is V = 4/3πr2 Solve for r.

$500 Answer from H3 r =

$100 Question from H4 Identify the x and y intercepts, and Then graph the equation 4x – 9 y = -36

$100 Answer from H4 X= -9; (-9,0) Y = 4; (0,4)

$200 Question from H4 Write an equation of a line that Goes through these two points (5,9) and (-4, 12)

$200 Answer from H4 Y = -1/3x +32/3

$300 Question from H4 Graph the function with the given Domain. Then Identify the Range. Y = -3x +2 ; x ≥0

$300 Answer from H4 Check with Mr. Muir!

$400 Question from H4 The variables x and y vary directly. Given x = 16 and y = 7, write an equation that relates x and y.

$400 Answer from H4 Y = 7/16 x

$500 Question from H4 The amount of windows (W) in the current Concordia MS building varies directly with the amount of doors (d) in the building. There are 125 windows and 25 doors. a.) Write a direct variation equation that relates W and d. b) When building the new middle school building, they are hoping to have 40 classrooms, each with 2 doors. How many windows should there be?

$500 Answer from H4 a.) y = 5x b.) y = 5 (80) = 400 windows

$100 Question from H5 Evaluate f(x) = 10x2 – 13x + 7 for f(-3)

$100 Answer from H5 = 138

$200 Question from H5 Write an equation of a line that passes through (5,8) and (-2, 12) in slope intercept form.

$200 Answer from H5 Y = -4/7 x + 76/7

$300 Question from H5 Write an equation of a line that passes through (2,9) and (-6, -15) in standard form.

$300 Answer from H5 Y = 3x + 3 Stand Form: -3x + y = 3

$400 Question from H5 a) Write an equation of the line that is parallel to the line y = 1/3x + 8 and passes through the point (-3, 9). Write the final equation in slope-intercept form. b) Write an equation of the line that is perpendicular to the same line and passes through the same point. Write the final equation in slope-intercept form.

$400 Answer from H5 a.) Parallel: y = 1/3 x + 10 b.) Perp.: y = -3x

$500 Question from H5 After dancing for 35 minutes, Mr. Muir had burned 180 calories in one day. After dancing for 5 more minutes, Mr. Muir had burned 380 calories that day. If he dances for 15 more minutes, how many calories would he expect to burn?

$500 Answer from H5 Y = 40x -1220 Y = 40(55) – 1220 Y = 980 calories burned

Final Jeopardy 1.)Describe the Correlation. 2.)Explain the procedure for writing a line of best fit. 3.) If I wanted to use it predict future data outside the data range, what would this be called?

Final Jeopardy Answer 1.) Positive Correlation 2.) Draw line of best fit, pick two points on the line, find the equation of the line using point slope form. 3.) Extrapolation