PRE-CAL MATH TEST

Show all your work. Write neatly and clearly.

A/

1)Test the following to see if they are functions. If they are

i) state one-to-one or many-to-one ii) state the domain.

If they're not, say why.

a) x = y 2 b) y = x2 – 3x – 28 c)
d) e)  

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2) Write the equation of the line:

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3) State the slope, y-intercept and x-intercept of 2x + 3y =24

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.B/

1) y = 2x2 – 60x + 25

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2) Find the x-intercepts or ZEROS (if any) for:

a) y = x2 – 5x b) y = x2 – 4x – 21 c) y = x2 – 4x + 5

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3) A farmer has 60 meters of fencing to enclose a rectagular field along a riverbank.
The side along the river needs no fence since his cows can't swim.
What dimensions should he make the field in order enclose a maximum area?
(Make a diagram!!)

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