The Language of Algebra

When a letter is given a value that can change (i.e. it is not a fixed value) then we call it...

• a variable.

• a pronumeral.

Tags

CCSS.6.EE.A.2B

What is the constant term in the expression:

 $3ab\ +2c-6$  

• 3ab

• 2c

• 6

• -6

Tags

CCSS.6.EE.A.2B

What is the coefficient of 'm' in the expression:

 $4n\ -m+2$  

• 1

• -1

• m

• -m

Tags

CCSS.6.EE.A.2B

How could you write the following? (use 't' as the unknown value) The number is multiplied by two, then five is added and the result is divided by four.

• $\frac{2t}{4}+5$

• $\frac{2t+5}{4}$

• $2t+\frac{5}{4}$

• $\frac{2\left(t+5\right)}{4}$

Tags

CCSS.6.EE.A.2A

Which worded expression describes the algebraic expression:

 $3\left(m-1\right)$  

• Three is multiplied by a number and then one is subtracted.

• Three is subtracted from a number.

• One is subtracted from a number.

• One is subtracted from a number, then the result is multiplied by three.

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Bianca works as an electrician. She is paid $45 as a call out fee, then $70 an hour. Which expression represents the amount of money she would be paid for one contract?

• $M=70t+45$

• $M=45t+70$

• $M+45=70t$

• $M+70t=45$

Tags

CCSS.6.EE.C.9

If a number (w) is cubed, how should we write it algebraically?

• $3w$

• $w^2$

• $w^3$

• $3^w$

Tags

CCSS.6.EE.A.2A

Morgan is using the formula:

 $y=x^2$  Can Morgan ever get a negative number for 'y'? Why? [limit yourself to Real numbers]

Answer explanation

No. Since 'x' is being squared it is being multiplied by itself. A positive number multiplied by a positive number gives a positive result... And, A negative number multiplied by a negative number also gives a positive result. There is no way to get a negative result (using Real numbers). 

Tags

CCSS.HSF.IF.A.1

TRUE or FALSE. Using an unknown value 'd'. d is always less than 2d.

• TRUE

• FALSE

Tags

CCSS.6.EE.B.5