Answer:
The intercept is 5;
The slope of the line is -2.
The equation of the line can be written as;
[tex]f(x)=-2x+5[/tex]Explanation:
The equation of a straight line can be written as;
[tex]y=mx+b[/tex]Where;
m = slope
b = intercept
The intercept b is the value of y at x=0, that is the point at which the line intercept the y-axis.
From the graph the line intercept the y-axis at y=5, So the intercept is 5;
[tex]b=5[/tex]The slope of the equation can be derived by picking two points on the graph;
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]picking the y and x intercept of the line;
[tex](0,5)\text{ and }(2.5,0)[/tex]Calculating the slope we have;
[tex]\begin{gathered} m=\frac{0-5}{2.5-0} \\ m=\frac{-5}{2.5} \\ m=-2 \end{gathered}[/tex]The slope of the line is -2.
The equation of the line can be written as;
[tex]f(x)=-2x+5[/tex]