University:
Felician University
Course:
MATH-160 | College Algebra
Academic year:

2020
Views:

286

Pages:

3
Author:

CometConductor

NAME OF GENERAL SHAPE OF GRAPH FUNCTION SKETCH LINEAR QUADRATIC EXPONENTIAL 1. Complete the following tables and answer the questions to the right. (a) This function is. X Diff Y=2x -3 Cl linear -2 C] quadratic CJ exponential Describe two ways you were able to determine what this function is: o o f Y SV 2 eon 3 This function is. (b) x. y=x2 -3 q Diff 2nd Diff C] linear How do you know? -2 o 2 3 quadrati o 2 O exponential (c) Diff What do you notice about the differences in this function? Diff €3 By what number is the firstdifference multiplied by to get the next term in the sequence of y-values? How does thisvalue connect to the function?) Thisfunction is. : 'linear quadratic e ponential What methods can you use to verify the type of function selected? toou- 2. Use differences to identify the type of function represented by the table of values. Then label which t e of function each table of values models. 13 32 0.5 16 0.75 8 (6.0 1.3 20 I .25 1.5 29 1.5 1.7 .25 Function: Function: C QoAogÅfi1 Function: I .75 Function: neur• denti the followin e uations as linear uadrafic or ex onential. y=10 :linear quadratic O xponential Oli ar O quadratic O exponential 4. y = —2(x)+ 5 21inear - linear 0.9 uadratic uadratic O exponential x onential Olin r O quadratic O exponential olinear n qu dratic O exponential Graph the functionsy = y = x2and y = 2' on the same grid for. bel your graphs. 4 3 -t 2 o 2 .4 2 .2 .2 .3 -4 Lookinq at the qraph$ above: a) Which function equation shows a constant rate of change in its y values? How is this displayed on your araph? Aha b) For x < 4 how are the rates of change different for each graph? i.-\NE. COO of Practice Problems Identify the following equations as linear, quadratic or exponential. 3 2. y = ——x-3 2 expouq:« I : ave 3 4