Functions Algebra I Regents

What type of function best models the data?

• linear function with a negative rate of change
• linear function with a positive rate of change
• exponential growth function
• Exponential Decay function

Is the relation a function? 
(1,2), (3,4), (5,1), (8,1)

• Yes
• No

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Which equation is NOT a linear equation? 

• y = 2x - 3
• y = 8
• y = x²
• y = x

Which ordered pair is a solution of the system of equations? (solve by substitution)
y = 3x - 3
y = 5x - 7

• (2,3)
• (0,1)
• (1,2)
• (2,7)

Which ordered pair is the solution to the following system of equations?
2x - y = 13
3x + y = 2

• (-19, -3)
• (3, -7)
• (5, -3)
• (9, 5)

What is the solution for the system provided?

• Infinitely many solutions
• No solution
• One solution
• (0,0)

What is the equation for this line?

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

How many solutions does this graph have?

• one
• two
• no solutions
• cannot be determined

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1