Complete the table below, by substituting the given value into the expression and evaluating.
Function Definition  Expression  Substitution  Evaluates to 

fx = x + 2 
f3 
3 + 2 
5 
gx = x  1 
g6 

hx = 3x 
h4 

kx = 2x  1 
k5 
Now that you understand how to evaluate an expression, let’s get some more practice! The table below includes four different functions. Beneath each of them are a collection of different expressions to evaluate.
mx = 2x + 3  nx = x + 7  vx = 10x  8  wx = x^2 

m3 = 23 + 3 
n5 = 
v7 = 
w2 = 
3 

m4 = 
n2 = 
v0 = 
w10 = 


m0 = 
n3.5 = 
v10 = 
w0 = 


m0.5 = 
n0 = 
v2.5 = 
w1.5 = 

What do you Notice?  What do you Wonder? 


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