Given f(x)=x^4-7x^3+6x^2+8x+9
a) determine the x- and y-coordinates of the lowest point on the graph.
b) size the x-window from [-10,10]. find the highest and lowest values of f(x) over the interval -10≤x≤10
c) find the highest and lowest values of f(x) if -2≤x≤6

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?