Altitude above sea level is given in positive value and below sea level is given in negative values. what situation describes a hiker in death valley stopping at altitude of 0 feet. a) the hiker starts at 10 feet then increases altitude by 10 feet. b) the hiker starts at -10 feet the decreases altitude by 10 feet. c) the hiker starts at -10 feet then increases altitude by 10 feet. d) the hiker starts at 0 feet and then decreases altitude by 10 feet

answer: 2/4

step-by-step explanation:

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

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