IM Algebra Unit 6 Lesson 9 PRACTICE

Write the quadratic expression in standard form: $\left(x+4\right)\left(x-1\right)$  

•  $x^2+3$  

•  $x^2+3x+4$  

•  $x^2+3x-4$  

•  $2x+3$  

Tags

CCSS.HSA.APR.A.1

Write the quadratic expression in standard form: $\left(2x-1\right)\left(3x-1\right)$  

•  $5x^2-2$  

•  $6x^2-5x+1$  

•  $5x^2-5x-1$  

•  $5x-2$  

Tags

CCSS.HSA.APR.A.1

Write the quadratic expression in standard form: $\left(5x+2\right)^2$  

•  $25x^2+4$  

•  $10x+4$  

•  $25x^2+10x+4$  

•  $25x^2+20x+4$  

Tags

CCSS.HSA.APR.C.4

Consider the expression $8-6x+x^2$   .  Is it in standard form?

• Yes

• No

Tags

CCSS.HSA.SSE.B.3

Is the expression  $8-6x+x^2$  equivalent to  $\left(x-4\right)\left(x-2\right)$  ?

• Yes

• No

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which quadratic expression is written in standard form?

• $\left(x+3\right)x$

• $\left(x+4\right)^2$

• $-x^2-5x+7$

• $x^2+2\left(x+3\right)$

Tags

CCSS.HSA.SSE.B.3

A football player throws a football. The function h given by

 $h\left(t\right)=6+75t-16t^2$  

describes the football's height in feet t seconds after it is thrown.
Select ALL the statements that are true about this situation.

• The football is thrown from ground level.

• The football is thrown from 6 feet off the ground.

• In the function,  $-16t^2$  represents the effect of gravity.

• The vertex of the graph h gives the maximum height of the football.

• The function h has 2 zeroes that make sense in this situation.

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

 $f\left(t\right)=5+20t-16t^2$  

The height of a rock launched straight up in the air is given by the function and the graph.  Time is measured in seconds and height in feet.

What is the approximate maximum height of the rock? 

• 5 feet

• 20 feet

• 16 feet

• 11 feet

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

 $f\left(t\right)=5+20t-16t^2$  

The height of a rock launched straight up in the air is given by the function and the graph.  Time is measured in seconds and height in feet.

About how many seconds did it take for the rock to hit the ground?

• 5 seconds

• 20 seconds

• 16 seconds

• 1.5 seconds

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11

 $f\left(t\right)=5+20t-16t^2$  

The height of a rock launched straight up in the air is given by the function and the graph.  Time is measured in seconds and height in feet.

How high above the ground was the rock before it was first launched?

• 5 feet

• 20 feet

• 16 feet

• 1.5 feet

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2