Download 11_20 Test 3-1 Review_ANSWER KEY_ALG

lEST 3-1 ReviewY'ÿ
Name
Period
1 Graph the equation: y=--×+5.
2
2 Which is an equation of a line parallel
tO 2x+y=-4?
R
is
SloFÿ
y =-2x
B y 2x- 5
C
D
ÿ1ÿ
1
2
y=-x+3
1
y=---x-]
C)[" -'ÿ
-_ÿ
3 Convert the following equation to
slope-intercept form"
i mpl,ÿ ÿ4 sotvÿ
A y:3x-7
\!qÿ-ÿ: 3",z-I S
I(ÿ y=3x-17
C y=3x-13
- 2
)Ix Iÿ
D 3x+y =-7
4 Write the equation of a line, in slope-
intercept form, that is parallel to the
equation y = 4x-3and contÿns the
point (2, l). pÿ{ÿ..,ÿ [3olrrl-
mÿqÿ
"ÿOLmÿ
ÿlopÿ ÿol ve ÿbpe-ÿ
9 Which of the following is the point-
13 Write the equation of a line, in sloo_p_e_:
intercept form, that passes through
slope form of the equation of a line
that passes through the point
(2,-5)and has a slope of 3?
the points (6, 1) and (3, 3).
FMÿ ÿIopeÿ 3-I ÿ
--ÿ
.4--sfop
A y-S=3(x+2)
B y-2=3(x+5)
14 Write the equation o'fÿ-T[ffeTÿÿÿ'*
intercep_t form, ÿ.L!:ÿhe same slope
as the equationÿx-2:ÿ = 8)and has the
O y+5=3(x-2)
same y-interceptÿequation
U y+5=3(x+2)
x+5y=15.
10 Write the equation of a line, in
slope-intercept form, that passes
through the point (-6,-5) and has a
slope of _2 PÿJF i zq ÿoiÿd; sÿof ÿ- f ÿ
3
i
15 In slope-intercept form, what is the
equation of the line passing through
the points (-3, 2)and (3,-22)?
11 Graph the equation of the line given
in point-slope form.
y÷ÿ=ÿ(x-
9)
A y=4x+5
B
y = -4x + 5
C
y = -4x - 14
Lÿy = -4x -
3-(-ÿ) ÿ = -e.
--'-. *s)
10
.ÿ .ÿ-: ,4,, o.-tOT1
•_ÿ:L_:,Z\ ..... LL.!
Pu+ i r-, ÿ -i,,,ÿrÿ9+
"
16 If 5x+3y=18, solve for y in terms
A.,.
'/= s x-s
of x:
12 Find the point and the slope of the
line from the equation"
A
5
3
y =-x+6
2 --6)
y-7=-ÿ(x
y = --x+6
/-
Point
3
2-
(ÿdeÿ% Slope 'ÿ
5
C
y = --x -6
D
y =--x+6
3
3
5
u
ÿA7 ÿoJ
17 What is the x-intercept of the line
2ÿ+Ty-2s=o?
2_-ÿ-'?,I :2g
............
22 What is the slope of the line graphed
below?
2ÿ--2_g
18 What is an equation of the line with
a slope of _5 and an x-intercept of
6
pot,V.,.
8ÿ..--S lope =A ,, -o.S
5x-6y=15
1
4
A 4
-5x+6y=-20
B
1
4
__°
D
ri'se t
rurÿ ÿ
-4
-5x-6y 15 sloperS,-. &
-6 =-yes
23 Convert the given equations from
2O Find the slope of each of the following
linear equations.
Point-Slope Form to Slope-Intercept
Form. Show all steps.
a. y-?:-3(x+12) IYI ÿ
y+2=4(x- 1)
y- 1-±(x-9)
3
b. y=--x+8 ÿ ÿ
2
c.
x-4y=-16
A
g
- t
--
.£
H
21 Consider the equations of the lines
below"
t0ÿ
-...ÿL
I. 8x + lOy = 10
ÿ --ÿ
III.
24 Which ofÿhe following iÿ the poinÿ-ÿbpe form
5x + 4y = 12
of ÿhe equation ÿhat has a ÿope of 3 .ÿ.nd
contains the point (3,-ÿ.,,°'?.
II. 4x + 5y = 15
"]ÿ. .ÿ 4x-5y=5
A y- 2 = 3(x+3)
B y+2 =-ÿ(x-3)
C y-3=3(x+2)
D y +2 ÿ7ÿ(x-3)1
Which of the lines are parallel?
r,.',
A II and IV
B II and III
C III and IV
I and II
.:>ÿopeÿ 3
25 A line has a slope of 2
and a
11
In question 27, for the graphs that are NOT the
parent function, give the equation of each graph.
y-intercept of L. Which of the following
11
is an equation of the line?
A
B
@ 2x + 11y = 5
C
B 11x - 2y = 5
D
C 2x + 5y = 11
D 11x+2y= -5
28 Given the linear parent function y = x,
perform the following statements in the grid
below.
26 The graph of which of the following
equations is parallel to the graph of
y = 3x - 4?
A,
Draw the graph of the parent function
y=x.
ÿ ÿ\ÿ,ÿ...
sto
=3x+4
B. Draw the graph of y = x + 3 and
describe how the graph y = x + 3 compares
with the parent graph y = x.
By=3
C y = -3x + 4
D
y=4x-3
C. Draw the graph of y = -x + 3 and
describe how the graph y = -x + 3
compares to the parent graph y = x.
2 7 Which graph best represents the
parent function of a linear function?
AI
Y
B
: i .............. Kii ........ r] ....
" . ................... ÿ ..... ÿ " i ............ i
!i ................ i-i-i : ....... Yÿ
...ÿ ................. i....J [ . .t ..... TT(i
i-i ............. i-t
,
!i:::::: :::::::::::::::::::::::::::::::::::::::::::::::::: .........
'1
i
ÿ
i
i
i
.3ÿ1" 5' 6{ 7{ g; 9i 10[ ÿ-x
L,,,,4 ............... ÿ..,-,i ÿ'. , . I'ÿT
i i
! ! ! i ÿ ' ÿ-
....... ÿ .......... :: i i iÿii-: ': ..... i iÿ } ÿÿ '"-ÿ
..... a ............... ÿ. ' --ÿ * .4
i ..................... t .......................... i ..... ib
>iT1 ................... IL
,, L L i,,i , LLLL:t .: : :i : 7 =======================================.LL t