John Rhodes, Math Teacher at Senioritis.io

Feet to Yards Divide by 3 To convert feet to yards, you need to divide the number of feet by 3. Since there are 3 feet in...

Inches to Yards Divide by 36 To convert inches to yards, we need to know that 1 yard is equal to 36 inches. Therefore, we can use...

f(x) is increasing when f’ > 0 A function, f(x), is said to be increasing if its values increase as the input variable x increases, or in...

f(x) is decreasing when f’ < 0 In calculus, a function f(x) is decreasing if its values are decreasing as x increases. This means that if we...

f(x) has a critical point when f’ = 0, f’ is undefined A critical point of a function f(x) is a point x=c where the derivative of...

f(x) is concave up when f’ is ____ or f” is ____ increasing, f” > 0 To determine the concavity of a function, we need to analyze...

f(x) is concave down when f’ is ____ or f” is ____ decreasing, f” < 0 To determine whether f(x) is concave down, we can look at...

f(x) has an inflection point at (c, f(c)) when the concavity changes at f”(c) = 0 or f”(c) is undefined f”(c) changes sign at point c. In...