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math questions - Y= (c) What is the y coordinate of the...

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Sketch the graph of y = −x 2 + 5x + 1 (a)What is the slope of the graph at x=2 slope= (b) What is the equation of the tangent line at the point on the graph x=2 y= (c) What is the x coordinate of the point on the graph where the slope is 17? x= An iceberg is melting. The mass in tons of the iceberg t days after it was calved (= created) is M(t). M(20) = 10, 000 M (20) = −200 (a) Estimate the mass of the iceberg when it calved. tons (b) At the current rate of melting how many days after it was calved until it disappears? Days Sketch the graph of y = x 2 − 5x + 3 (a) What is the slope of the graph when x = 3p Slope= (b) What is the equation of the tangent line at the point on the graph where x=2.
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Unformatted text preview: Y= (c) What is the y coordinate of the point where this tangent line crosses the y-axis ? y= Use the graph given to find (a) log ( 3.75 10 ) = (b) Solve 10 x = 0.0035 x= (c) The average rate of change of 10 x between 0.2 and 0.7= A circular slice of butter is melting in the sun. At 2pm the area of the circle was 16 square inches. The area of the circle t hours later is A(t) square inches. Also A (t) = 20. (a) What was the approximate area of the circle after t hours Square inches (b) Approximately how many minutes after 2pm until all the butter is melted. minutes...
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