Chapter 4.2, Problem 16E

(a)

To determine

To prove: $f\text{ is increasing on }ℝ\text{, where }f(x)=3x-7$

(b)

To determine

To prove: $g\text{ is increasing on }ℝ\text{, where g}(x)=2-5x$

(c)

To determine

To prove: $h\text{ is increasing on [0, }\infty \text{), where }h(x)=x^2$

(d)

To determine

To prove: $f\text{ is increasing on (-3, }\infty ),\text{ where }f(x)=\frac{x-1}{x+3}$