1) The given graph represents ...................................... a) inverse variation b) direct variation c) combined variation d) partial variation 2) The quantity of Iron boxes made is directly proportional to the number of iron blocks. The number of iron blocks needed for 40 boxes is 160. How many iron blocks are needed for a box? a) k = 1 b) k = 3 c) k = 4 d) k = 0.5 3) The graph represents ................... a) y = 2x b) y = 5x c) y = -2x d) y = 0.5x 4) If x = 10 and y = 20 follow a direct variation then find the constant of proportionality a) k = 2 b) k = 5 c) k = -5 d) k = 0.2 5) The graph shows a variation, what is the of constant of variation a) k = 3 b) k = 10 c) k = 5 d) k= - 5 6) The graph shows .............. a) y = - 0.5x b) y = - 5x c) y = - 2x d) y = - x 7) A bicycle travels at a speed of 10 miles per hour. Write a direct variation equation for the distance y the bike travels in x hours. a) y = 10x b) y = 4x c) y = 6x d) y = x 8) How much do you make an hour? a) K 20 b) K 30 c) K 29 d) K 18 9) The graph represents ..................... a) y = x b) y = 10x c) y = 2x d) y = 3x 10) The graph represents .................. a) y = tanx b) y = cotx c) y = cosx d) y = sinx

VARIATION:Draw and interpret the graphs of variation

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