Could do with some help thanks Find the range of the functions a) f(x) = 2X+7 b) f(x) = (x+2)(x-1) thanks again
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Originally Posted by gracey Could do with some help thanks Find the range of the functions a) f(x) = 2X+7 b) f(x) = (x+2)(x-1) thanks again Hi gracey, ermm u sure u jotted down all the info, maybe u missed giving the domain ? otherwise its an infinite range for both case
Originally Posted by gracey Could do with some help thanks Find the range of the functions a) f(x) = 2X+7 b) f(x) = (x+2)(x-1) thanks again Assuming there are no restrictions for the domain, and the domain is all real numbers, then a) f(x) is linear. The range f(x) is all real numbers. b) f(x) is quadratic ( a parabola opening upward with vertex (-.5, -2.25)). The range f(x) = {f(x)|f(x)>=-2.25}
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