Precalculus Test Questions with Correct Answers linear function - Answer -f(x)=mx+b direct va riation - Answer -f(x)=mx quadratic - Answer -f(x)=ax²+bx+c or f(x)=a(x -h)² +k reflection over x -axis (y -coordinates become opposite) - Answer --f(x) reflection over y -axis (x -coordinates become opposite) - Answer -f(-x) above x -axis stays the same, below x-axis reflects over the x -axis - Answer -|f(x)| right of y -axis stays the same, left of y -axis reflection right of y -axis - Answer -f|(x)| sine - Answer -sinx= Opp/Hyp=y/r cosine - Answer -cosx=Adj/Hyp=x/r tangent - Answer -tanx=Opp/Adj=y/x cosecant - Answer -cscx=Hyp/Opp=r/y secant - Answer -secx=Hyp/Adj=r/y cotangent - Answer -cotx=Adj/Opp=x/y reciprocal properties - Answer -sinx=1/cscx cscx=1/sinx cosx=1/secx secx=1/cosx tanx=1/cotx cotx=1/tanx quotient properties - Answer -tanx=sinx/cosx= secx/cscx cotx=cosx/sinx=cscx/secx Pythagorean properties - Answer -cos²x+sin²x=1 1+tan²x=sec²x cot²x+1=csc²x
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Precalculus Test Questions with Correct Answers
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Precalculus Test Questions with Correct Answers linear function - Answer-f(x)=mx+b direct variation - Answer-f(x)=mx quadratic - Answer-f(x)=ax²+bx+c or f(x)=a(x-h)² +k reflection over x-axis (y-coordinates become opposite) - Answer--f(x) reflection over y-axis (x-coordinates become opposite) - Answer-f(-x) above x-axis stays the same, below x-axis reflects over the x-axis - Answer-|f(x)| right of y-axis stays the same, left of y-axis reflection right of y-axis - Answer-f|(x)| sine - Answer-sinx= Opp/Hyp=y/r cosine - Answer-cosx=Adj/Hyp=x/r tangent - Answer-tanx=Opp/Adj=y/x cosecant - Answer-cscx=Hyp/Opp=r/y secant - Answer-secx=Hyp/Adj=r/y cotangent - Answer-cotx=Adj/Opp=x/y reciprocal properties - Answer-sinx=1/cscx cscx=1/sinx cosx=1/secx secx=1/cosx tanx=1/cotx cotx=1/tanx quotient properties - Answer-tanx=sinx/cosx=secx/cscx cotx=cosx/sinx=cscx/secx
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