Algebra 1 EOC Quadratic Equations

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

Where are the roots for this parabola:
y = 2x² - 3x - 5

• (-1,0) and (2.5,0)
• there are none
• (1,0) and (-2.5,0) 
• (2,0) and (-3,0)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• symmetrical point for the vertex

Tags

CCSS.HSG.GPE.A.2

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSF-IF.C.7A

Bob jumped off a cliff into the ocean. His height as a function of time is modeled by h(t)=-16t²+20t+480. After how many seconds will Bob hit the water? What information would be most helpful to answer this question?

• a point in the parabola other than the root, vertex, or y-interecpt

• a root

• the vertex

• The y-intercept

If a rocket is launched vertically from the ground level with an initial velocity of 100 feet per second. Its height can be modeled by the equation y=-16t²+100t where t represents the seconds since the launch. What would be most helpful to determine the maximum height of the rocket?

• a point in the parabola other than the vertex, root, or y-interecpt

• a root

• the vertex

• the y-intercept

Susan jumped off the end of a ski jump. Her height in meters relative to the height of the ski jump after t seconds is given by h(t)=-5t²+12t. How high will she be after 2 seconds? What form would be most helpful to answer this question?

• Vertex Form

• Factored Form

• Standard Form

• Any Form (Just plug in t=2)

Solve the equation using the quadratic formula: 2x² + 3x − 20 = 0

• 5/2, -4

• -5/2, -4

• -5/2, 4

• 5/2, 4

Tags

CCSS.HSA-REI.B.4B