Name Date ]ÿ,ÿL Iltÿ

"Test 2.2 REVIEW- Algebra 1 - MPJH

Period

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q2. What is the x-intercept of the equation 2x + 4y = 7? ÿ /

3. At Jennifer's Jet Ski's, the cost for renting a jet ski is $45 plus $35 per day. Thetotal cost can be represented by the equation y = 45 + 35x where x is the numberof days for which the jet ski has been rented and y is the total cost of renting thejet ski. What is the y-intercept of this equation?

. Rodney's Rides car rental office charges $20 per day and $0.20 for each mile torent a small economy car. Grant plans to rent a car for a 2-day weekend vacation.

Which of the following represents the number of miles, m, Grant can drive if he canspend up to $120 on a car rental for this vacation?

A 0 < m < 120 ,ÿ, ÿ" (: 20 < m_< 120

B 0 < m < 500<(ÿ0)]ÿ%tJ 00 < m.<_ 400

SW..,j 0,.5. Write the equation of a vertical line passing through the point (5, 8)

6 ! ÿ ]_. , ...,,,... w 'll

,0}

6. Write the equation of a horizontal line passing through the point (-3, -7)

, What is the y-intercept of the graph of 6x + 3¥ = 127 V -- H

, Decide which of the two points lies on the graph of the line.

x- av = J.= q'{ÿ.evt laF,6/a (9,,) b. (<-2) q- ÿ 6)ÿ 1;ÿ

o ,/eÿ cI-3; ÿ :-,6¢IFL

(o-I- ÿ --- I ;u

i#

cg x "- g = IO X ÷-30- 311 .,-- 2-a

at ; D i° ÿ 1 .a ÿ i.'..,6, {t

1 Ivÿ the proportion: a.

9. Solve the equation for y. a. + y= 11 b. 10ÿ-5y= 25

J -7 ...........-"5 ÿ5

710. Make a table and find the range of y = ] x + 3 if the domain is -3, -1, O, 3.

__Lÿ_* ±ÿ_ yv[ÿ_

11.Identify_ÿ.ÿrlÿof tttlÿ function with the given domain.tÿ+,

>oIÿ<-P, ÿ ÿj; 2]J}ÿ:- ÿ,--x +q.... ÿ -"5 ....

x>O

tE]3,-<-_.ÿ

c.t.-osÿ m,4-hr.,tv

p , ' :OldI

6x- 3y = 9; domainx< 1 L,!=ÿj)4 ....v,

<ÿt='(+)" ÿ: I'ÿ--"1 ÿ2..(-.ÿ).-7 - 9

b (-ÿ-'% ÿ4' ÿ-'ÿ7ÿ

60 : tI, q

13. Write each equation in standard form,

qx #BT-Ca.-4 + 2y= 8x

L>:=: ...... J

b, 10x-12 = 8y

r-i;-y ..... 2 ..............ÿ

14. The table below shows valuesof y as a function of x. Which linearequation best describes the relationshipbetween x and y? ÿ#ÿ,,:,¢

17. Find the value of x so thatthe function has the givenvalue.

A y=6x

&[B }/= 4x+ 4

c y=mx+6 j%,

D y=Sx ÿOz

16. The owner of a convenience storerecorded the number of customers in theStore from 6:00am to ll:00am who wereserved coffee and the number of pots ofcoffee that were consumer. Write anequation that describes this function.

20. A mechanic charges C(t) dollarsto install a new distributor in a car.The formula

c(t) = 16t + 160

IZlZIZ

is used to find the cost ofinstallation, where t is the numberof hours of labor performed by themechanic. What does the sloperepresent?

0 b4 P*" #':V

ku'v (7.¢' ÿ'ÿ M.

21. The graph below represents theamount of money Liz borrowedfrom her father and the number ofmonthly payments needed to payit back.

23. For four consecutive years, Darin

recorded the height of a tree heplanted.

.,,ÿ

i.+ÿ,

He plotted the height of the treeat the same Lime every, summer

and drew a line connecting theprevious years data point to thenew data point, as shown on thegraph below.

A. What does the slope of the

.ÿ, ÿ graph represent in the situation? ,ÿ

B. What does the y-intercept in the ÿ- ÿ, ..D (2 (.. !<_

graph represent in this situation? [.

" C. If LIz continues to pay her

father at the same rate, when willshe finish paying her father off2

. . .-7--

, ¢i i7 7? -O 1 2

22. Grace is saving money in a savingsaccouÿe stÿ3x,ÿ with $5, andadds (_$v3.eeÿwe.els.} as shown onthe graph below.

4

Which of the following is a correctinterpretation of the slope of the line onDarin's graph?

A The tree grew 1 foot in four years

B The tree grew 1.5 feet in six years

)The tree grew 2 feet in six months

D The tree grew 4 feet in six months

{,.;R &(ÿb,7ÿ &ÿ\q{N(;ÿ OVER !"Iÿi1-ÿy

L2

s

N 42:

I 2 ÿ 4

What is the slope of the line connectingthe points on the graph?

04, Yÿ (X'4.ÿ5 ÿ /-{se ,ÿ.....,.,

rw tq ---3-- "ZiJo

24. Olsi's Algebra teacher assigned 50homework problems. The table belowcompares the number of homeworkproblems Olsi has completed to thepercentage of the homework he has yet

to do. ÿ,4(:> 0{9(: I ÿ.ÿ.ÿ ÿ,ÿ ("

,o,.°, .......................................................... v_.,Loo,o Cslol "'

,.(,ÿ ................ .,,,.,.!ÿ,ÿz ..... )

.':; ÿ 248

What is the slope of the line that fits

these data? _ ÿoo ÿ-ÿ.ÿ -'J ÿ2-' --/ÿ)-ao o._ .d --q--I ....... ---