Answers edited by Alex Boroda

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• Why are so many people under the impression that we need to find the domain of a rational function in order to find its zeros? Zeros of #f(x) = (x^2-x)/(3x^4+4x^3-7x+9)# are #0,1#.
  
• Question #c9e1c
  
• Question #a73a3
  
• How do you find the distance between point A(-3, 5) and point B(4, -6) in the coordinate plane?
  
• What characteristics are identified from the graph of an exponential function?
  
• What is #k# in Newton's Law of Cooling?
  
• What is the vertex, axis of symmetry, the maximum or minimum value, and the range of parabola #y=4x^2-2x+2#?
  
• What is the range of #y=[(1-x)^(1/2)]/(2x^2+3x+1)#?
  
• Is it possible to have a equilateral right triangle?
  
• How do you create a histogram from a frequency table?
  
• How do you create box and whisker plots on a graphing calculator?
  
• How could the graph of an exponential function be used to determine an #a# value?
  
• How do you find all the asymptotes for #f(x) = x+1+sqrt(x^2+4x)#?
  
• How do I calculate the depreciation value of a car?
  
• How do you factor #3x^4-x^3-3x^2+1#?
  
• What is the graph of #4x − 2y + z = −1#?
  
• If a number is multiplied by each term of an arithmetic sequence, is the resulting sequence still arithmetic of is it geometric?
  
• How can a system of equations be used to predict media use?
  
• How do you graph exponential decay functions?
  
• What is the distance between the origin of a Cartesian coordinate system and the point (4,-6)?
  
• How do I find the Cartesian equation of a plane containing three given points?
  
• How do you write an equation in standard form for a line passes through (2, –3) and is perpendicular to y = 4x + 7?
  
• How is the slope of a line related to speed?
  
• How do you graph #2(y-1) > 3(x+1)#?
  
• How do I find the constant term of a binomial expansion?
  
• What is the range of #y=[(1-x)^(1/2)]/(2x^2+3x+1)#?
  
• How do I do matrix subtraction in Excel?
  
• For what kind of data would you construct a dotplot or stemplot?
  
• How do you use z score to find p value?
  
• How do you write the equation of a transformed graph?
  
• How to use the discriminant to find out what type of solutions the equation has for #x^2-4x+10=0#?
  
• If I don't have a calculator, how can I assess the normality of a data set?
  
• What is a modified boxplot?
  
• How do you know if a word problem is talking about exponential functions?