Intro to Quadratic Equations Concepts

Which object was launched from a higher point?

• The one represented by g

• The one represented by f

• They both had the same height

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

1. Which object reached a higher point?

• Function f

• Function g

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

1. Which object was launched with the higher upward velocity?

• f(x)

• g(x)

• Can't tell by the graph

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

1. Which object landed LAST?

• f(x)

• g(x)

• Unable to tell by the graph

The domain of the graph should only show values for time greater than zero.

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Values for time = 3 make sense in this situation.

• True because 3 is a positive number. Time is positive.

• False because 3 is after the rock hits the ground.

Tags

CCSS.HSF.IF.A.2

The height in feet of a thrown football is modeled by the equation f(t) = 6 + 30t - 16t², where time t is measured in seconds. What does the constant 6 mean in this situation?

• 1. The initial upward velocity of the football was 6 feet per second.

• The pull of gravity on the football.

• 1. The football was thrown from 6 feet above the ground.

• The time it took for the football to hit the ground.

1. The height in feet of a thrown football is modeled by the equation h(t) = 6 + 30t -16t², where time t is measured in seconds. The initial upward velocity of the football is ...

• 6 + 30t

• -16t²

• 6

• 30t

Two objects are launched into the air.

• The height, in feet, of Object A is given by the equation f(t) = 4 + 32t -16t².

• The height, in feet, of the Object B is given by the equation g(t) = 2.5 + 40t -16t².

• In both functions,  t is seconds after launch.

Which object was launched with a greater upward velocity?

• Object A

• Object B

• Same velocity of 16t²

The x- intercepts of the graph of the quadratic function defined by the expression (x + 6)(x - 6) are...

• x = -5, x = 5
• x = -6, x = 6
• x = -8, x = 8
• x = -7, x = 7

Tags

CCSS.HSF-IF.C.7A