haileystacey05
haileystacey05 haileystacey05
  • 21-02-2019
  • Mathematics
contestada

The table shows a linear function.

Which equation represents the function.

The table shows a linear function Which equation represents the function class=

Respuesta :

gmany
gmany gmany
  • 24-02-2019

Answer:

[tex]\large\boxed{f(x)=\dfrac{3}{2}x-1}[/tex]

Step-by-step explanation:

[tex]\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}[/tex]

[tex]\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for  the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT[/tex]

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