Big Ideas Chapter 3 Algebra

What is the y-intercept of 
f(x)=-2x² + 4x - 6

• (0, 6)

• (0, -6)

• (6, 0)

• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

Solve for u

3u + 2 = 32

• 102

• 9

• 10

Tags

CCSS.7.EE.B.4A

• 1

• -1

• 3

• -3

A taxi ride costs $3 plus $2 for each mile driven. When you rode in a taxi, the total cost was $39. This can be modeled by the equation below, where m represents the number of miles driven.

2m + 3 = 39

How long was your taxi ride?

• 72 miles

• 34 miles

• 21 miles

• 18 miles

Tags

CCSS.7.EE.B.4A

What could be the first step to solve the equation shown below?

3x + 5 = 2(x + 7)

• Combine 3x and 5.

• Multiply x by 2 and 7 by 2.

• Subtract x from 3x.

• Subtract 5 from 7.

19 + a = -50

• a = -950

• a = -69

• a = -31

Tags

CCSS.6.EE.B.7

5x - 4 + 2x = 3

• 1

• 2

• 3

• 4

Tags

CCSS.8.EE.C.7B

7x = 3x + 24

• 6

• 10

• 14

• 4

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step

• They should add 19 instead of subtracting 19

• I can not find an error

• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

CCSS.7.EE.B.4A