Alg. Review 1

Which situation is best represented by the
function f(x), where f(x) = 12x + 5?

• An office-supply store sells x boxes of
  ballpoint pens that contain a dozen pens
  per box for $5 each.
• An Olympic swimmer trains by
  swimming 12 kilometers on each of x
  weekdays and 5 kilometers on each day
  of the weekend.
• An algebra quiz has x problems worth
  12 points each plus 5 extra-credit
  problems worth 5 points each.
• A company sells x baseball caps for $12
  each and charges a $5 shipping fee.

Which equation generates a graph containing
the set of ordered pairs shown below?
{(−15, 12), (−5, 8), (5, 4), (10, 2)}

• y = -3/5 x + 3
• y = -2/5 x + 6
• y = -1/5 x + 9
• y = -4/5 x

• y≥x−1
• y≤x−1
• y>x−1
• y≤x+1

Give the solution to the system

• (3,1)
• (1,3)
• (-1,3)
• a hoppy hippo

• Function
• Not a Function

• Function
• Not a Function

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth
• Linear
• Exponential Decay
• None of the Abovee

.
If f(x)=x²,

• Then the blue curve is x²+C
• Then the blue curve is (x+C)²
• Then the blue curve is Cx²
• The the blue curve is x²-C

Which equation matches the graph?

• y = 2x + 3
• y = -3
• y = 2x - 3
• y = -3x + 2

If f(x)=3x-9, find f(5).

• f(5) = 6
• f(5) = 16
• f(5) = -4
• f(5) = 24