The graphs below show four functions: 10 8. 5, 3. D. 05 15 25 3.5 Which graph best shows the function f(x) = 5(2)T to represent the rate at which a radioactive substance decays? acer A,

1.9 Write the equation that results in the desired transformation: The graph of y = x³, vertically compressed by a factor of 0.8. y = 0.8 a. b. y = (x – 0.8)³ С. y = (x + 0.8)³ d. y = 0.8x³

a. quintic b. radical function Matching (10 marks) Place the letter of each description with the numbered items below. (1 mark each) reciprocal linear function extends from Q3 to Q4 f. g. CPO C. inverse is a log function h. d. never changes sign i. instantaneous rate of change average rate of change e. even function j. is symmetric about the origin 1. slope of the tangent 2. y=-2x(x-1)(x+3)2 h(x)=√√4x+3 3. slope of the secant 4. 5. has between 1 and 5 x-intercepts 6. y=-(x-1)(x+4)4 7. an odd function 8. A(t)=2(3) +1 3 g(x)=- 9. 2x+1 10. f(x)=(-x) holds true to ed