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3 years ago

Pls help asap Which quadratic function is represented by the graph?

Mathematics

1 answer:

DiKsa [7]3 years ago

8 0

Answer:

1st option

Step-by-step explanation:

From the graph the zeros are x = - 3 and x = 1 , then the corresponding factors are

(x + 3) and (x - 1) , so

y = a(x + 3)(x - 1) ← a is a multiplier

To find a substitute a point on the graph into the equation

Using (0, - 1.5 ) , then

- 1.5 = a(3)(- 1) = - 3a ( divide both sides by - 3 )

0.5 = a

Then

f(x) = 0.5(x + 3)(x - 1)

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3 years ago

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The velocity of a moving body is given by the equation:

$v=t^2-5t+4 ,\, t\geq0$

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We want to find between which interval(s) is the object moving backwards. Hence, the second condition. Therefore:

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