Please show all work.

answer:

Hi there! I can help you. So what you have to do is plug in the numbers in the "x" column into the question and solve them out. With that being said, here are some of the answers.

1. 

x-values: -5, -1, 3, 7

3.

x-values: 9, 7, 5, 3

3. 

x-values: -3, -1, 1, 3

Okay. These next equations are in slope-intercept form, y = mx + b , with "m" being the slope, and "b" being the y-intercept. Meanwhile, the y and x values stay open. Here are the slopes for the problem.

4. 

slope: 6

5.

slope: -3

Now, for the two questions, we repeat what we did for the first three questions. Here are the answers:

6. 

x-values: -5, 1, 4, 10

7.

x-values: -6, -4, -2, 2

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form