a)
[tex]f(x)=x-1[/tex]
we have a linear function in this case the slope is equal to 1 therefore we have a line with a positive slope.
b)
[tex]h(x)=2[/tex]
when the function is constant we will have a horizontal line
c)
[tex]g(x)=3x^2+4[/tex]
we have a quadratic function and because the quadratic term is positive the graph will be a parabola opening up
