S22 Alg2 U4 Test

If given the equation
y = 3(x + 5)² - 4,
what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction
• multiply the x² by a decimal
• multiply the x² by a negative number
• multiply the x² by a number greater than 1

Which of the following equations is the vertex form of a quadratic function?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Which equation is graphed here?

Tags

CCSS.HSF-IF.C.7A

Which equation matches the graph?

Tags

CCSS.HSF-IF.C.7A

What is c in the following equation? y = ax² + bx + c

• Zeroes
• Axis of Symmetry
• Direction
• y-intercept

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)
• (-2, -7)
• (2, -7)
• (-7, -2)

Refer to the parent function y = x².

Select all of the transformations that create the new function

y = -5x² + 11

• Reflected over x axis

• Vertical stretch by 5

• Vertical stretch by 11

• Shift up 11

• Shift left 11

Compare the functions: which one is vertically stretched the most?

• f(x) = 3x²

• g(x) = -2x²

• h(x) = 0.5x²

• a(x) = 12x²

What are the x-intercepts for g(x) = (x + 8)(x + 2)

• 8 and 2

• (8, 2)

• -8 and - 2

• (-8, -2)

Tags

CCSS.HSF-IF.C.7C