The amount of time that it would take the pizza to increase by 4 degrees Celsius is 1.25 minutes.
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.
Let y represent the temperature in degrees after x minutes.
The graph passes through the point (2, 10) and (4.5, 30), hence:
y - 10 = [(30 - 10)/(4.5 - 2)](x - 2)
y = 8x - 6
At 4 degrees:
4 = 8x - 6
x = 1.25
The amount of time that it would take the pizza to increase by 4 degrees Celsius is 1.25 minutes.
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