1.Write an equation of the line that passes through the points (-3,-9) and (5. -9). 2. Write an equation in slope intercept form of the line that passes through the points (-2,10) and (5,-11)

Step-by-step explanation:

NUMBER ONE

The slope of tghe line (m) = (y₂ - y₁) ÷ (x₂ - x₁)

                                           =  (- 9 - (-9)) ÷ ( 5 - (-3))

                                           =    0

The slope is zero because the y values of the line remain the same which means the line doesn't slope or rise.

We can now use the point-slope form to write the equation for this line:

y - y₁ = m(x - x₁)

            y - (-9) = 0 (x - (-3))

             y + 9  = 0

                   y  =  - 9

NUMBER TWO

For the slope-intercept form ( y = mx + c ) we need two main things: the slope (m) and the y-intercept (c)

slope = (y₂ - y₁) ÷ (x₂ - x₁)  = (10 - (-11)) ÷ (-2 - 5)

                                        =  21 ÷ (-7)

                                         = - 3

Let's write the equation without the value of c. This will help us solve for it.

                  y = -3x + c

if we substitute in a point give (-2 , 10) we can find c

                  10 = -3 (-2) + c

                   10 = 6 + c

                    c = 10 -6

                    c = 4

⇒ the equation of the line is y = -3x + 4

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun