cottoncandygirl72
contestada


4. Two pairs of related (x, y) values for a function are (-3, 9) and (-1, 13).
Find the slope and y-intercept, and write the equation of the function.
equation: __
slope: __
y-intercept: __

4 Two pairs of related x y values for a function are 3 9 and 1 13 Find the slope and yintercept and write the equation of the function equation slope yintercep class=

Respuesta :

mhanifa

Step-by-step explanation:

Find the slope:

  • m = (13 - 9)/( - 1 + 3) = 4/2 = 2

Find the y-intercept:

  • 9 = 2(-3) + b
  • 9 = -6 + b
  • b = 9 + 6
  • b = 15

The equation is:

  • y = mx + b
  • y = 2x + 15
  • (-3,9)
  • (-1,13)

Slope

  • m=13-9/-1+3
  • m=4/2
  • m=2

Equation in point slope form

  • y-9=2(x+3)
  • y-9=2x+6
  • y=2x+15

Y intercept=15

Otras preguntas