1) f(x)=10x, find f(2) a) 12 b) 20 c) 10m+2 d) 20m 2) f(x)=-x+3, find f(-2) a) 1 b) 5 c) -1 d) -5 3) g(a)=4-3a, find g(0) a) 0 b) 1 c) 4 d) -4 4) f(x)=1/3(x-4), find f(10) a) 6 b) -6 c) -2 d) 2 5) Consider the mapping below! The formula for its function is... a) f(x)=3x b) f(x)=1/3x c) f(x)=2x d) f(x)=1/2x 6) Which of the following arrow diagrams below which can be defined as a function of f(x)=-2x a) b) c) d) 7) If the function f is defined as (1,1);(4,2);(9,3);(16,4);(25,5) then the formula for the function is a) f(x)=1/2x b) f(x)=1/4x c) f(x)=x2 d) f(x)=akar x 8) A function is defined by f(x)=5-x. If domain is {-3,-2,-1,0,1,2,3,4}, then range is a) {1,2,3,4,5,6,7,8} b) {2,3,4,5,6,7,8,9} c) {-1,-2,-3,-4,-5,-6,-7,-8} d) {-2,-3,-4,-5,-6,-7,-8,-9}

Function grade 8

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