7.10 Proficiency exam

( [link] ) $-6x+4>-14$

( [link] ) $-8<x+6\le -4$

( [link] ) Plot the ordered pairs $(3,1),(-2,4),(0,5),(-2,-2)$ .

( [link] ) As accurately as possible, label the coordinates of the points that have been plotted on the graph.

( [link] ) What is the geometric structure of the graph of all the solutions to the equation $2y+3x=-4$ ?

( [link] ) In what form is the linear equation in two variables $ax+by=c$ ?

( [link] ) In what form is the linear equation in two variables $y=mx+b$ ?

( [link] ) If an ordered pair is a solution to a linear equation in two variables, where does it lie geometrically?

( [link] ) Consider the graph of $y=\frac{2}{7}x+16$ . If we were to place our pencil at any point on the line and then move it horizontally $7\text{units}$ to the right, how many units and in what direction would we have to move our pencil to get back on the line?

( [link] ) $(-6,-1)\text{and}(0,8)$

( [link] ) $(-2,-8)\text{and}(-2,10)$

( [link] ) Determine the slope and $y-\text{intercept}$ of the line $3y+2x+1=0$ .

( [link] ) As we look at a graph left to right, do lines with a positive slope rise or decline?

( [link] ) $\text{Slope}\text{=}\text{4,}\begin{array}{cc}& \end{array}y\text{-intercept}=-3$ .

( [link] ) $\text{Slope}\text{=}-\frac{3}{2}\text{,}\begin{array}{cc}& \end{array}y\text{-intercept}=\frac{4}{3}$ .

( [link] ) $\text{slope}\text{=}\frac{\text{2}}{\text{3}},\begin{array}{cc}& \end{array}\text{passes}\text{through}(-1,2)$ .

( [link] ) $\text{slope}\text{=}\text{7,}\begin{array}{cc}& \end{array}\text{passes}\text{through}\text{(0,}\text{0)}$ .

( [link] ) passes through the points $(5,2)$ and $(2,1)$ .

( [link] - [link] ) $y=\frac{1}{3}x-2$

( [link] - [link] ) $5y-2x+15=0$

( [link] - [link] ) $4(x+y)=8$

( [link] — [link] ) $\frac{3}{2}y+2=0$

( [link] — [link] ) $x=-2$

( [link] ) $2x+3y>6$

( [link] ) Reading only from the graph, determine the equation of the line.