Answer:
(a)
The slope of the equation = 0.02
Therefore T-intercept equals 15
(b)
Therefore the average global surface temperature in 2050 is 17°C.
Step-by-step explanation:
If a equation is in the form
y= mx+c........(1)
Then the slope of the equation is m.
Slope: The tangent of the angle which is made with the positive x-axis.
If θ be the angle , Then slope (m)= tanθ.
If a equation in the form
[tex]\frac{x}{a} +\frac{y}{b} =1[/tex]............(2)
Then x-axis intercept equals a and y-axis intercept equals b.
Given equation is
T=0.02t+15.0
Comparing with equation (1)
The slope of the equation = 0.02
Again we can rewrite the equation as
[tex]T-0.02t=15[/tex]
[tex]\Rightarrow \frac{T}{15} -\frac{0.02t}{15}=1[/tex]
Comparing with (2)
Therefore T-intercept equals 15
(b)
Here t= 2050-1950 =100
Putting t=100 in the given equation
T=0.02(100)+15 = 2+15 =17
Therefore the average global surface temperature in 2050 is 17°C.
