7).
In the graph 7
The two coordinates are (-1,-1) and (1,3)
The slope of a line is expresses as :
[tex]\begin{gathered} \text{Slope = }\frac{y_2-y_1}{x_2-x_1} \\ \text{Here x}_1=-1,x_2=1,y_1=-1,y_2=3 \\ \text{Slope = }\frac{3-(-1)}{1-(-1)} \\ \text{Slope =}\frac{3+1}{1+1} \\ \text{Slope =}\frac{4}{2} \\ \text{Slope =2} \end{gathered}[/tex]
Answer slope of grap 7 is 2.
8)
In the graph 8
The coordinates are (-2,4) and (2,0)
The slope will express as :
[tex]\begin{gathered} \text{Slope = }\frac{y_2-y_1}{x_2-x_1} \\ \text{Here x}_1=-2,x_2=2,y_1=4,y_2=0 \\ \text{Slope = }\frac{0-4}{2-(-2)} \\ \text{Slope =}\frac{-4}{2+2} \\ \text{Slope =}\frac{-4}{4} \\ \text{Slope =}-1 \end{gathered}[/tex]
Slope of graph 8 is (-1).
Answer :
(7) slope = 2
(8) slope = -1
