Algebra 1 4.1.1 Introduction to Quadratics

Does this open upwards or downwards?
y= -x² -4x -5

• up
• down

Does this open upwards or downwards?
y= -3x² + 6x - 6

• up
• down

What is the value of b?
y= 4x² -x +6

• 4
• 1
• -1
• 6

What is the value of a?
y= -3x² + 6x - 6

• -3
• 6
• -6
• 3

• Up

• Down

• Left

• Right

• (19, 0)

• (121, 0)

• (0, 19)

• (0, 121)

Which of the following equations matches standard form of a quadratic?

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

Label the Graph with the Correct Key Features.

1. ​ (a)   2. ​ (b)   ​

3. ​ (c)   ​ 4. ​ (d)  

• Y-Intercept
• Zero
• Vertex

What is the equation for the line of symmetry of the function f(x)=x²-4x+3? (Use your calculator)

• x = 3

• x = 2

• x = 0

• x = 1

What's the y-intercept of y = 3x²- 6x + 4

• (4,0)
• (-4,0)
• (0,-4)
• (0,4)