f(x) - This line passes through (-2,2) and y-intercept is -4 i.e. it passes through (0,-4). Hence its slope is (-4-2)/(0-(-2))=-6/2=-3. Hence f(x) is given by y=-3x-4
g(x) - As give this is given by y=3x-4, hence slope is 3 and intercept on y-axis is -4.
h(x) - here we assume that Monday is 0 and Tuesday is 1, hence as number of apples on 0 day is 4 and on 1 day is 1, the representative y intercept is 4 and slope is (1-4)/(1-0)=-3/1=-3.
j(x) - here as the x in function moves from -2 to 2 and then 6 and j(x) moves from -2 to 10 and then 22, the slope is (10-(-2))/(2-(-2))=12/4=3 also (22-10)/(6-2)=12/4=3. For y-intercept, we can take mid point of 2 and -2, where j(x)=(10+(-2))/2=8/2=4 and y-intercept is 4
