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ALEKS - Formulas to Know Questions and Answers
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ALEKS - Formulas to Know
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ALEKS - Formulas to Knowslope formula - answery2-y1/x2-x1 (rise/run)
midpoint formula - answer((x1+x2)/2, (y1+y2)/2)
distance formula - answer√(x2-x1)^2 + (y2-y1)^2
quadratic formula - answer-b ± √(b² - 4ac)/2a
discriminant formula - answerb² - 4ac
discriminant > 0 - answer2 solutions
discriminant = 0 - answer1 solution
discriminant < 0 - answerno real solutions (2 complex solutions)
logarithmic form --> exponential form - answerlog(b)x=y --> b^y=x
equation of a circle - answer(x-h)^2+(y-k)^2=r^2
(h,k) : center, r : radius
circle area - answerπr^2
circle circumference - answer2πr
cylinder surface area - answer2πr^2+2πrh
cylinder volume - answerπr^2h
sphere surface area - answer4πr^2
sphere volume - answer4/3πr^3
cone surface area - answerπrl+πr^2
cone volume - answer1/3πr^2h
cube surface area - answer6s^2
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