Question

James determined that these two expressions were equivalent expressions using the values of x = 4 and X= 6. Which

statements are true? Check all that apply.
7x+4 and 3x+5+4x-1
When x = 2, both expressions have a value of 18.
The expressions are only equivalent for x = 4 and x = 6.
The expressions are only equivalent when evaluated with even values.
The expressions have equivalent values for any value of x.
The expressions should have been evaluated with one odd value and one even value.
When x = 0, the first expression has a value of 4 and the second expression has a value of 5.
The expressions have equivalent values if x = 8.​

Answer 1

When x = 2, both expressions have a value of 18

The expressions have equivalent values for any value of x.

The expressions have equivalent values if x = 8.​

Explanation:

7x+4 and 3x+5+4x-1

7(2)+4 = 18 and 3(2)+5+4(2)-1 = 18

7x+4 and 3x+5+4x-1

7x + 4 and 7x + 4

Idnetical, equal for all x

Answer 2

When x = 2, both expressions have a value of 18

The expressions have equivalent values for any value of x.

The expressions have equivalent values if x = 8.​

Explanation:

7x+4 3x+5+4x-1

Let x=2

7*2 +4 = 18

3*2+5+4*2-1 = 6+5+8-1=18

When x = 2, both expressions have a value of 18

The expressions are only equivalent for x = 4 and x = 6.

False, they are both equal when x=2

Try x=1

7+4 =11 3+5+4-1 = 11

They are equal with an odd value

When x = 0, the first expression has a value of 4 and the second expression has a value of 5.

4 5-1 =4 false

The expressions are only equivalent when evaluated with even values. false

The expressions should have been evaluated with one odd value and one even value. my best guess is false, if it is true for 2 values it is true for all values

The expressions have equivalent values if x = 8.​ true

7*8 +4 = 60 3(8)+5 +4(8) -1 =60

The expressions have equivalent values for any value of x.

7x+4 3x+4x +5-1 = 7x+4

They are always equal