How do i find the anwser to this question

Answers

If you're solving for y it has to be this way
-7y=-3x+9
Y=3/7x -9/7
If you're solving for x
3x=7y+9
X=3/7y+3/1
Graph. red• 25+0.5d (music city)
blue•. 1.5d

Music city
C=25+0.5d
C-cost
D-downloads

Both are the same cost at 25 downloads
c = 25 + 0.5d \\ c = 25 + 0.5(25) \\ c = 25 + 12.5 \\ c = 37.5
Tune Dune
C=1.5d
c = 1.5d \\ c = 1.5(25) \\ c = 37.5
Tune Dune is cheaper until the 25 song downloaded, the they are equal. After that, Music city is cheaper.
Music city charges a monthly membership of $25 with each download costing $0.50. tune dune does not

Could you give more info so I can try and sole it?

Step-by-step explanation:

Answer 1.a):

x-intercept= (2,0)

Because graph crosses x-axis at x=2


Answer 1.b):

y-intercept= (0,4)

Because graph crosses y-axis at y=4


Answer 1.c):

Domain= All real numbers.

Because graph covers all x-values along x-axis when checking from left side to right side.


Answer 1.d):

Range = All real numbers.

Because graph covers all y-values along y-axis when checking from bottom side to up side.


Answer 1.e):

Minimum = NO


Answer 1.f):

Maximum = NO


Answer 1.g):

Increasing Interval = NO

Because graph goes all the time downward.


Answer 1.f):

Decreasing Interval = (-infinity, infinity)

Because graph goes all the time downward when looking from -infinity to infinity.


Same way we can solve other problems.


Answer 2.a):

x-intercept= (-1,0), (2,0)


Answer 2.b):

y-intercept= (0,-2)


Answer 2.c):

Domain= All real numbers.


Answer 2.d):

Range = [-2.25, infinity)


Answer 2.e):

Minimum = -2.25


Answer 2.f):

Maximum = NO


Answer 2.g):

Increasing Interval = (0.5, infinity)


Answer 2.f):

Decreasing Interval = (-infinity, 0.5)



Answer 3.a):

x-intercept= (-2,0)


Answer 3.b):

y-intercept= (0,-6)


Answer 3.c):

Domain= All real numbers.


Answer 3.d):

Range = (-infinity, 2)


Answer 3.e):

Minimum = NO


Answer 3.f):

Maximum = NO


Answer 3.g):

Increasing Interval = NO


Answer 3.f):

Decreasing Interval = (-infinity, infinity)


Answer 4.a):

x-intercept= (-4,0), (2,0)


Answer 4.b):

y-intercept= (0,-2)


Answer 4.c):

Domain= All real numbers.


Answer 4.d):

Range = (-3,infinity)


Answer 4.e):

Minimum = -3


Answer 4.f):

Maximum = NO


Answer 4.g):

Increasing Interval = (-1, infinity)


Answer 4.f):

Decreasing Interval = (-infinity, -1)

4 = (2+2x)-x
4 = (2+2(2))-2
4 = (2+4)-2
4 = 6-2
4 = 4 
Which makes x=2  
-6 = M you’d have to subtract one on both sides and then add that -1 to the -5

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