Help on 1-3 please! I hope this isnt to much to ask for help but it would mean a lot

1) Y = -4/3X - 1

2) Y = X

3) Y = 1/2X - 2

Step-by-step explanation:

For the first one: The graph can be seen starting at one point and intercepting the Y-axis at -1. By counting down and over, we can see that the coordinates go down by 4 and to the right by 3, which can be represented by -4/3. The Y-intercept is -1, which means the last part of the equation will be -1. From this, we get the equation: Y = -4/3X - 1.

For the second one: The line goes up by one and to the right by 1, which can be represented by 1/1X, or just X. The line's Y-intercept is 0, which does not need to be represented. This gives the final equation: Y = X.

For the third one: The line goes up by one and to the right by 2, which can be represented by 1/2. The line's Y-intercept is -2. This can be represented by the equation: Y = 1/2X - 2.

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!