Find the Equation for the Graph Algebra 2

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

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.

• Function
• Not a Function

Graph

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• 
• 
• 

Which is the graph of y=-x+2?

• A

• B

• C

• D

Write the equation of the line.

• y=(1/3)x-1

• y=(3/2)x -1

• y=3x-1

• y=(2/3)x-1

Graph

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• 
• 
• 

• The dependent variable is total cost
• The dependent variable is weight
• The independent variable is total cost
• The independent variable is cost of a package

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