Question

Dada a função afimf(x) = 5x – 2, determine: a) f(2) b) f(-3) c) f d) O valor de x para que f(x) = 0.​

Answer 1

Resposta:

$\mathrm{Dominio\:de\:}\:5x-2\::\quad \begin{bmatrix}\mathrm{Solucao:}\:&\:-\infty \:<x<\infty \\ \:\mathrm{Notacao\:intervalo}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}\\\\\mathrm{Imagem\:de\:}5x-2:\quad \begin{bmatrix}\mathrm{Solucao}\:&\:-\infty \:<f\left(x\right)<\infty \\ \:\mathrm{Notacao\:intervalo}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}\\\\\mathrm{Paridade\:de}\:5x-2:\quad \mathrm{Nao\:e\:par\:nem\:impar}$

$\mathrm{Pontos\:de\:interseccao\:com\:o\:eixo\:de}\:5x-2:\quad \mathrm{X\:intersepta}:\:\left(\frac{2}{5},\:0\right),\:\mathrm{Y\:intersepta}:\:\left(0,\:-2\right)$

$\mathrm{Inversa\:de}\:5x-2:\quad \frac{x+2}{5}\\\\\mathrm{Inclinacao\:de\:}5x-2:\quad m=5\\\\5x-2\\\\\mathrm{Para\:a\:equacao\:de\:reta\:da\:forma\:}\mathbf{y=mx+b}\mathrm{,\:a\:inclinacao\:e\:}\mathbf{m}\\\\m=5$