Evaluate the following function at x = 1.5
1. f(x)=2x+1

2. g(x)=x^2-2x+1

3. h(x)=√(x+1)

4. i(x)=(2x+1)/(x-1)

Solutions:

1. f(x) = 2x+1
f(1.5) = 2(1.5)+1
f(1.5) = 3+1
f(1.5) = 4

2. g(x)=〖 x〗^2-2x+1

g(1.5)= 〖(1.5)〗^2-2(1.5)+1

g(1.5)= 2.25-3+1

g(1.5)= 0.25

3. h(x)=√(x+1)
h(1.5)=√(1.5+1)
h(1.5)=√2.5

4. i(x) = (2x+1)/(x-1)
i(1.5) = (2(1.5)+1)/(1.5-1)

i(1.5) = (3+1)/0.5 = 4/0.5

i(1.5) = 8​