Determine if the sequence is geometric . If it is , find the common ratio , the explicit formula and the recursive formula . 1. -40 , 20 , -100 , 500

2. 4 , 20 , 100 , 500

3. 4 , 24 , 144, 864

5. 3 , -12 , 48 , -192

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

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