contestada

Use the points (1, -3) and (5, 9) for the following problems.
a. determine the slope between the two points above using the slope formula. show all work. answer: the slope has to be (-1,-6), and (-5, 18)
b. use the slope from part (
a. and one point from above to write the equation in point-slope form. answer:
c. transform the equation in part (
b. to slope intercept form.

Respuesta :

TheHero
Slope between two points is:

P1 = (1, -3) 
P2 = (5,9)

[tex] \frac{Δy}{Δx} [/tex]  = [tex] \frac{9 + 3}{5 - 1} = 12/4 = 3[/tex]

[tex] \frac{Δy}{Δx} [/tex]  = [tex] \frac{18 + 6}{-5 + 1} = 24/-4 = -6[/tex]

the slope has to be (-1,-6), and (-5, 18)  <<< What ??


y + 3 / x - 3 = 3 (Point slope form)

y + 3 = 3x - 9 

y = 3x - 12  ( Slope intercept form) 

y = mx + b << slope intercept form




Otras preguntas