Explicação passo-a-passo:

[tex]a)[/tex]

[tex]f(x) = - 2x + 3[/tex]

[tex]coef. \: angular = > - 2 \\ coef. \: linear = > 3[/tex]

[tex]b)[/tex]

[tex]g(x) = 4x - 5[/tex]

[tex]coef. \: angular = > 4 \\ coef. \: linear = > - 5[/tex]

[tex]c)[/tex]

[tex]h(x) = \frac{2}{3}x \: - \: 2[/tex]

[tex]coef. \: angular = > \frac{2}{3} \\ coef. \: linear = > - 2 [/tex]