Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 28PPS
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Transcribed Image Text:For number 11 12 use the problem below.
A user is charged P400.00 monthly for a Sun and Text mobile plan which include
500 free texts messages. Messages in excess of 500 is charged P1.00. Represent a
monthly cost for the mobile plan using s(t) where t is the number of messages sent
in a month.
s(t)
(11.
l12.
11.
a. s(t) = {400, if 0 <t< 500
b. s(t) = {400, if 0 <t2 500
c. s(t) = (400, if 0<t < 500
d. s(t) = (400, if 0>t > 500
%3D
12.
a. s(t) = 400 + t, if t > 500
b. s(t) = 400 + t, if t < 500
c. s(t) = 400 + 2t, if t 2 500
d. s(t) = 400 + 2t, ift <500
%3D
below.
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