Mathematics
Linear growth and decay
Practice questions
If (p(x)=60+9x) and (q(x)=14x-10), when will (p(x)) and (q(x)) be equal?If (p(x)=330-18x) and (q(x)=78+3x), what is (x) for (p(x)=q(x))?For which (k) will (y=90+(k-11)x) show linear growth?For which (k) will (y=410-(k-8)x) show linear decay?If (R(x)=140+mx) and (R(14)-R(7)=126), what is (R(0))?If (S(x)=s-13x) and (S(6)-S(15)=117), which conclusion is correct?If (A(t)=72+8t) and (B(t)=111+15t), how does (B(t)-A(t)) change?If (C(t)=390-11t) and (D(t)=270-22t), how does (C(t)-D(t)) change?Which of the following polynomial relations represents linear decay in \(y\) as \(x\) increases?Which of the following relations shows that y decreases by 8 units for every 1-unit increase in x, with a linear change?If (f(x)=12x+50), when will (f(5x)-f(2x)) be (180)?If (g(x)=420-14x), when will (g(2x)-g(6x)) be (224)?If (P(t)=90+8t), (P(7)+P(19)) is equal to twice which (P(k))?If (Q(t)=420-12t), (Q(6)+Q(18)) is equal to twice which (Q(k))?If in (y=220+ax), (y) increases by (144) from (x=9) to (x=17), what is (a)?If in (y=420-bx), (y) decreases by (152) from (x=8) to (x=16), what is (b)?If (A(t)=70+9t) and (B(t)=118+5t), at what (t) will (A(t)) be (8) more than (B(t))?If (C(t)=350-14t) and (D(t)=80+4t), at what (t) will (C(t)) be (18) less than (D(t))?If (f(t)=a+9t) and the sum of (f(3), f(7), f(11)) is (279), what is (a)?If (g(t)=b-8t) and the sum of (g(5), g(9), g(13)) is (288), what is (b)?