Consider the function f(x) = 2x^2 +4x – 6. Part A: Sketch a graph of the function represented by the equation.

Part B: Is the function increasing or decreasing over the interval [-3, -1)? Explain.

Part C: Over what interval is f(x) negative? Justify your answer.
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too hard the other guy did it

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

b.

step-by-step explanation:

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