Let
x-------> the time in minutes
y-------> the temperature in Fahrenheit degrees
[tex]A(2,150)\\B(3,190)[/tex]
we know that
the change in the y-values between two points is equal to
[tex](y2-y1)[/tex]
Substitute the y-values of the point A and B in the formula
[tex]y2=190\\y1=150[/tex]
[tex](190-150)=40[/tex]
the change in the x-values between two points is equal to
[tex](x2-x1)[/tex]
Substitute the x-values of the point A and B in the formula
[tex]x2=3\\x1=2[/tex]
[tex](3-2)=1[/tex]
therefore
the answer is
The change in the y-value is [tex]40[/tex] and the change in the x-value is [tex]1[/tex]
