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W ARM UP! Jan. 24, 2013

W ARM UP! Jan. 24, 2013. Question 1. Simplify: a . b. Question 2. The Scatter Plot below represents the relation between temperature & ice cream sales. Using the plot, predict the dollar amount of ice cream sales if tomorrow’s temperature will be 22 o. Question 3.

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W ARM UP! Jan. 24, 2013

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  1. WARM UP!Jan. 24, 2013

  2. Question 1 Simplify: a. b.

  3. Question 2 The Scatter Plot below represents the relation between temperature & ice cream sales. Using the plot, predict the dollar amount of ice cream sales if tomorrow’s temperature will be 22o

  4. Question 3 Hannah's electricity company charges her $0.11 per kWh (kilowatt-hour) of electricity, plus a basic connection charge of $15.00 per month. Write a linear function that models her monthly electricity bill as a function of electricity usage.

  5. Question 4 Write the definitions of the following terms: Y intercept Congruent Coefficient

  6. Time is up!!! Trade and Grade!

  7. ANSWERS • A. B. 2. $500.00 of ice cream sales 3. Y = .11x +154.a.The Y intercept of a straight line is simply where the line crosses the Y axis.b.Figures that have the same shape and same size are said to be congruent. c.A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient)

  8. Critical Thinking 1 How much mud (measured in meters) is there in a rectangular hole 2 meters wide, 3 meters long, and 3 meters deep?

  9. ANSWER CT1: No mud at all, a hole contains only air!

  10. Critical Thinking 2 I man wakes up at night in the pitch dark. He knows that on his bedside table are a razor, a watch, and a glass of water: How can he reach for the table and be sure to pick up the watch without touching either the razor or the glass of water?

  11. ANSWER CT2: Turn the light on silly!

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