Answer:
f(-1)=2(-1)+7=5
f(0)=2(0)+14=14
f(2)=2(2)+14=18
Step-by-step explanation:
this type of question just use direct substitution, to know which equation to be used for substitution, just check if the given x fall under which interval, theb use that equation.
for example f(-1), since the x=-1, it is fall under x<0 interval, so we use the equation 2x+7 to find the answer.
