f(x) g(x) x x (-8,5) (8,4) (8,3) (3,0) (-4,-1) (-7,-1) (3,-2) (0,-3)

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f(x) g(x) x x (-8,5) (8,4) (8,3) (3,0) (-4,-1) (-7,-1) (3,-2) (0,-3) Reading Graphs f(x) g(x) (-8,5) (8,4) (8,3) x x (3,0) (-4,-1) (-7,-1) (3,-2) (0,-3) (-4,-5) Example (Reading graphs). Use the graphs above to answer the questions. Find f(-4). Find g(-4). Find (f+g)(-4). Find f(-8). Find g(-8). Find (f+g)(-8). What is the domain of f? What is the domain of g? What is the range of f? What is the range of g?

f(x) x (0,5) (-7,-2) (-4,0) (-3,3) (-1,3) (-9,0) (2,0) (5,-6) (8,0) Reading Graphs (3,-3) (7,-3) Example (Reading graphs). For the function graphed above: Find f(-7). For what values of x is f(x)=0? For what values of x is f(x)<0? For what values of x is f(x)>0? What is the domain of f? What is the range of f? For what values of x does f(x)=-3? On what intervals is the function increasing? On what intervals is the function decreasing? On what intervals is the function constant? At what number(s) does f have a local maximum? At what number(s) does f have a local minimum?