it is given that, the equation of expected value of television A after x year is,
f(x) = 100( -x + 4)
f(x) = -100x + 400 .......(1)
also, the expected value of television B is initially 360 $
then it decreases 90$ per year,
so the equation of expected value of television B after x years is,
g(x) = 360 - 90x
g(x) = -90x + 360 ........(2)
so, the y-intercept of television A is 400
and the y-intercept of television A is 360.
thus, f(x) has greater y-intercept. and g(x) has lesser y - intercept,
thus, the answer is g(x) has lesser y - intercept,
the correct answer is option A