f(x) - This line passes through (−2,2) and y-intercept is −4 i.e. it passes through (0,−4). Hence its slope is −4−20−(−2)=−62=−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 1−41−0=−31=−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)=124=3 also 22−106−2=124=3. For y-intercept, we can take mid point of 2 and −2, where j(x)=10+(−2)2=82=4 and y-intercept is 4