hints for #1 :
hints for #1 (a) Using a graphing calculator, find the quadratic model that best fits the data below. (b) Estimate the value of the function at x = -4 using your model equation from part (a).
Round all values to the nearest tenth.
(–2, –30); (–1, –17); (1, –9); (4, –30)
MODE/ choose Float (1)/ 2nd/ QUIT
STAT/ EDIT/ enter the x’s into L1 and the y’s into L2
STAT/ CALC/ QuadReg/ VARS/ Y-Vars/ Function/ Y1/ ENTER
Copy the equation: y = ___x2 ___x ___
2nd/ TBLSET/ Indpnt=ASK/ 2nd/ TABLE/ type “-4”
Copy the point (–4, ___)
model #2 :
model #2 Write each polynomial in factored form.
model #3 :
model #3 Write each polynomial in factored form.
model #4 :
model #4 Write each polynomial in factored form.
Hints for #5 :
Hints for #5 Find (a) the relative maximum, (b) relative minimum, and (c) zeros of the function below using a graphing calculator. Round to the nearest tenth.
Type the function into Y=
GRAPH/ and ZOOM IN if needed
2nd/ CALC/ maximum
Left & Right Bounds & Guess around the “hilltop”
2nd/ CALC/ minimum
Left & Right Bounds & Guess around the “valley”
2nd/ CALC/ zeroes
Left & Right Bounds & Guess around the x-intercept(s)
model #6 :
model #6 Write the polynomial function in standard form with the given zeros.
model #2 :
model #2 Write each polynomial in factored form.
model #2 :
model #2 Write each polynomial in factored form.
model #2 :
model #2 Write each polynomial in factored form.
model #2 :
model #2 Write each polynomial in factored form.