Answer:
f(-1) = 3
Step-by-step explanation:
See the graph shown in the attached file with the given question.
The graph passes through (0.5,0) point on the X-axis and (0,1) point on the Y-axis.
So, the length of the X-intercept is 0.5 and that of Y-intercept is 1.
Hence, the equation of the straight line graph is
[tex]\frac{x}{0.5} +\frac{y}{1} =1[/tex] {Using the intercept form}
⇒ 2x + y = 1 ....... (1)
Now, y = f(x) = 1 - 2x
Hence, f(-1) = 1 - 2 ( - 1 ) = 3 (Answer)
