Hello :)
To find a slope of a line you can use the slope formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
You are already given points (4,4) & (2,5).
[tex]x_1=4\\y_1=4\\x_2=2\\y_2=5[/tex]
Plug them into the slope formula
[tex]\frac{5-4}{2-4} =\frac{1}{-2}=-\frac{1}{2} \\[/tex]
So the slope would be [tex]-\frac{1}{2}[/tex]
