Solve each equation. Check your solution. \( \begin{array}{ll}1 . d-8=17 & \text { 2. } v+12=-5 \\ \end{array} \)

Use the point-slope form to write an equation of the line with the given slope and point. Then write the equation in slope-intercept form. slope 4 , passes through \( (4,6) \)

Factorise coumpletely. \( 21 a^{2}+28 a^{b} \)

Find the slope and the \( y \)-intercept of the line with the given equation. \[ 4 x+3 y=9 \] slope \( y \)-intercept \( (x, y)=(\square) \) Submit Answer

Find the \( x \) - and \( y \)-intercepts of the graph of the equation. Do not graph the line. \[ \begin{array}{l}7 x+5 y=35 \\ x \text {-intercept } \quad(x, y)=(\square) \\ y \text {-intercept } \quad(x, y)=(\square)\end{array} \]

Verifique se a equação abaixo é ou não é uma proporção \( \frac{2-2 x}{3 x}=-\frac{1}{3} \)