Question

Part A. Evaluate the algebraic expression, 4x, for the different values of x listed.

x = −2
x = 3
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Part B. Evaluate the algebraic expression, 3x + 2, for the different values of x listed.
x=−0.5
x=−1

Answer 1

Part A : a) -8 b) 12

Part B : a) 0.5 b) -1

Explanation:

For Part A:

Let the algebraic expression be
`p_(1) = 4x`

so,

put
`x = -2\\` we get

`p_(1) = 4*-2`

`p_(1) = -8`

put
`x = 3\\` we get

`p_(1) = 4* 3`

`p_(1) = 12`

For Part B:

Let the algebraic expression be
`p_(2) = 3x +2`

so,

put
`x = -0.5\\` we get

`p_(2) = 3*-0.5 + 2`

`p_(2) = -1.5 + 2`

`p_(2) = 0.5`

put
`x = -1\\` we get

`p_(2) = 3*-1 +2`

`p_(2) = -3 +2`

`p_(2) = -1`