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gizmo_the_mogwai [7]
3 years ago
6

The table shows the cost of a pizza based on the number of toppings. Write a function rule to find the cost for a pizza with x t

oppings

Mathematics
2 answers:
Papessa [141]3 years ago
6 0

Answer:

Let y represents the cost of a pizza.

here, x represents the number of topping.

Using slope-intercept form:

The equation of line is given by:

y = mx+b          .....[1]

where, m is the slope of the line and b is the y-intercept.

From the given table:

Consider coordinates in the form of (x, y)

i,e (1, 12) and (2, 14)

Calculate slope:

\text{Slope (m)} = \frac{y_2-y_1}{x_2-x_1}

Substitute the given points we have;

m = \frac{14-12}{2-1} = \frac{2}{1} = 2

Substitute this in [1] we have;

y =2x+b

Substitute any point from the given table to find b:

Substitute (4, 18) we get;

18 = 2(4) +b

18 = 8+b

Subtract 8 from both sides we have;

10 = b

or

b = 10

⇒y =2x+10

therefore,  function rule represents the  given data table is, y =2x+10

zheka24 [161]3 years ago
5 0

10/x I think but I am not sure


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