Mathematics, 26.01.2020 21:31 sog8jojo
1. scientists estimate the rate of the wildebeest running at full speed to be 66 feet per second. write a function rule to describe the relationship between the time, t, and the distance ,d, a wildebeest travels when running at full speed.(1 point)
a. t = 66d
b. 66 = d • t
c. d = 66/t
d. d = 66t
2. identify the function rule shown in the table. (1 point)
n 3 4 5 6
y 2 1 0 -1
a. y = 2 + n
b. y = 5n
c. y = 5 - n
d. not enough information
3. rico made a function table to illustrate the rate he charges for mowing lawns. complete the table. then write a function rule for the function. (1 point) ( ) = blank
hours (h) 1 2 3 4 5
earnings (e) ( ) ( ) ( ) $22.00 $27.50
a. $5.75, $11.50, $17.25; e = 5.75h
b. $6.00, $12.00, $18.00; e = 6.00h
c. $5.25, $10.50, $15.75; e = 5.25h
d. $5.50, $11.00, $16.50; e = 5.50h
4. a dvd store charges $4.70 for each day, d, a dvd is rented. the store also gives you a dollar off if the dvd is returned before 5 days.
1. write a rule to represent the rental charges c.
2. how much will you pay if you return the dvd after 4 days? 7 days?
a. c = 4.70d; $18.00, $32.90
b. if d ≤ 5 then c = 4.70d, if d > 5 then c = 4.70d + 1; $17.80, $31.90
c. if d ≥ 5 then c = 4.70, if d < 5 then c = 4.70d - 1; $17.80, $32.90
d. if d ≤ then c = 4.70d, if d > 5 then c = 4.70d - 1; 18.80, $31.90
5. write a rule for the function represented by the table. (1 point)
input (x) 0 1 2 3 4
output (y) 3 6 9 12 15
a. y = 3x
b. y = 3x + 3
c. y = 5x + 1
d. y = x + 5
6. (i know the answer)
7. use the function rule to complete the table -10x + y = 4 (3 points)
( ) = blank
x -2 -1 0 1 2
y ( ) ( ) ( ) ( ) ( )
8. find the function rule. (2 points)
x -2 -1 0 1 2
y 9 4 -1 -6 -11
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1. scientists estimate the rate of the wildebeest running at full speed to be 66 feet per second. wr...
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