Writing an equation for a parabola using the x-intercepts:
x=-1 x=4
f(x)=(x+1)(x-4) distribute
f(x)=x^2-4x+1x-4 combine like terms
x^2-3x+4
my question is, why does the -4 turn into a +4 in the final answer?

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile

Which of the following domains provide a real value periods

Pleasse me i need an answer. give me the correct answer. answer if you know it ! the club will base its decision about whether to increase the budget for the indoor rock climbing facility on the analysis of its usage. the decision to increase the budget will depend on whether members are using the indoor facility at least two times a week. use the best measure of center for both data sets to determine whether the club should increase the budget. assume there are four weeks in a month. if you think the data is inconclusive, explain why.