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The cost of custom-made cookies at a bakery is shown on the graph below, where x represents the number of cookies and y represents the total cost.

The Cost Of Custommade Cookies At A Bakery Is Shown On The Graph Below Where X Represents The Number Of Cookies And Y Represents The Total Cost class=

Sagot :

The equation of a line is given by:

[tex]y=mx+b[/tex]

where m is the slope and b is the y intercept. From the graph we notice that b=1. To find the slope we need to use the formula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Using the first two points on the graph (0,1) and (1,3) we have that the slope is:

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

Plugging the values in the first equation we have that the equationwe are looking for is:

[tex]y=2x+1[/tex]