Mathematics
Linear growth and decay
Practice questions
Two models are (A(t)=10+3t) and (B(t)=25+t). Which value is greater at (t=5)?Two models are (A(t)=10+3t) and (B(t)=25+t). What is the correct comparison at (t=5)?Two models are (C(t)=80-4t) and (D(t)=70-2t). Which value is greater at (t=5)?If (T(t)=30+2t), when will (T(t)=46)?If (U(t)=64-4t), when will (U(t)=28)?If (f(x)=12+5x), what is the value of (f(x+2)-f(x))?Which of the following rules represents a quantity decreasing at a constant rate with time?Which option has (y) increasing by (4) each time (x) increases and (y(0)=9)?Which option has (y) decreasing by (3) each time (x) increases and (y(0)=50)?Which of the following equations represents a linear decrease in y at a constant rate as x increases?If (y=90-5x), what is the difference between (y) at (x=2) and (y) at (x=7)?In a mobile data plan, data is (D(d)=2+1.5d) GB. What will be the total data at (d=4)?A temperature model is (T(h)=35-1.5h). What will the temperature be at (h=6)?If (y=5+2.5x), what is (y) at (x=4)?If (y=42-2.5x), what is (y) at (x=8)?If (y=18+kx) is linear growth and (k=0), what is correct about the statement?If (y=70-kx) is linear decay and (k=0), what is correct about the statement?Members in a class are (M(w)=32+2w). After how many weeks will the members be (50)?Items left in a warehouse are (I(d)=200-12d). When will (80) items be left?If (f(x)=3x+5), what is the value of (f(4)+f(6))?