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help i need to know how to put this equation together by looking at the graph

Help I Need To Know How To Put This Equation Together By Looking At The Graph class=

Sagot :

To calculate the slope of a graphic you have to compare two points.

I'll use the ones marked with a dot.

One is the y- intercept(b) of the line P₁ (0,2)

The other one is P₂ (-1,-1)

The formula to use is

[tex]m=\frac{y_1-y_2}{x_{1-x2}}[/tex]

m= slope

y₁ and x₁ represent the coordinates of the first point

y₂ and x₂ represent the coordinates of the second point

[tex]m=\frac{2-(-1)}{0-(-1)}=\frac{2+1}{1}=\frac{3}{1}=3[/tex]

The slope of the linear function is m=3

y= b + mx

b= y-intercept (value of y when x=0)

y= 2 + 3x

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