Question

Question number 4 please help

Answer 1

The correct answe is H , if yu sub the x value in each of the equations yu should get y

Answer 2

Linear Equations

Linear equations are typically organized in slope-intercept form:
`y=mx+b`

• m = the slope
• b = the y-intercept (the value of y when x=0)

To find the slope of a line (m):

1. Find the coordinates of two points that fall on the line
2. Plug them into the following formula:

• 
  `m=(y_2-y_1)/(x_2-x_1)` where
  `(x_1,y_1)` and
  `(x_2,y_2)` are the coordinates of the points

To find the y-intercept of a line (b):

1. Plug the slope into
   `y=mx+b`
2. Plug in one of the points
3. Solve for b

Solving the Question

We're given a set of coordinates for this linear relation.

First, solve for the slope.

`m=(y_2-y_1)/(x_2-x_1)`

⇒ Plug in any two points that fall on the line (in this case we used (-2,-7) and (2,1)):

`m=(1-(-7))/(2-(-2))\\\\m=(1+7)/(2+2)\\\\m=(8)/(4)\\\\m=2`

Therefore, the slope of the line is 2. Plug this into
`y=mx+b`:

`y=2x+b`

Now, let's solve for the y-intercept (b)

`y=2x+b`

Plug in any of the given points:

`1=2(2)+b\\1=4+b\\b=-3`

Therefore, the y-intercept of the line is 3. Plug this back into
`y=2x+b`:

`y=2x-3`

Answer

`y=2x-3`