Math 2 Final Exam Review #5

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum
• opens up with a minimum
• opens down with a maximum
• opens down with a minimum 

What does "a" control in a graph of f(x) = ax²+ bx+ c?

• Opens up or down
• Where the graph crosses at X-intercept
• Where the graph crosses at Y-intercept

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)
• (0, 3)
• (0, 7)
• (0, -7)

Reflect the point (2, -4) over the y-axis.

• (-4, 2)
• (-2, 4)
• (-2, -4)
• (2, 4)

Given the system of equations:
y = x² + 2x + 8
y = -4x
What is the smallest value of y that is a solution to the system?

• y = -4
• y = -2
• y = 8
• y = 16