The true statement is : D. The boiling point decreases by 1.8 degrees as the altitude increases by 1000 feet. True statements are : A,D & E
Step-by-step explanation:
5.
The equation is given as : T(a)= -0.0018a +212 where T (a) is the boiling point of water measured in degrees at altitude a measured in feets.
From the equation , when the altitude is increased by 1000 feets, a=1000, the equation will be
T(1000) = -1.8 + 212, which means that the boiling point decreases by 1.8 degrees as the altitude increases by 1000 feet
6.
The values given can be taken as coordinates and plotted on a graph tool as shown in the attached figure.
Finding the slope of the graph'
m=Δy/Δx
Taking points (14,73) and (9,51.75) the slope of the linear graph will be;
Δy=73-51.75 = 21.25
Δx=14-9 =5
m= 21.25/5 = 4.25
The equation of the linear graph taking m=4.25 and point (14,73)
m=Δy/Δx
4.25 = y-73/x-14
4.25(x-14) = y-73
4.25x - 59.5 =y-73
4.25x - 59.5 + 73 =y
y=4.25x+13.5
From the graph,
The price in 2005 will be $77.25
The predicted average change in ticket price per year is $4.25
The y -intercept is the price of ticket in 1990
True statements are : A,D & E
Learn More
Linear graphs :https://brainly.com/question/11052356
Keywords : function, model, altitude, boiling point, statement, price, tickets, slope, best fit
#LearnwithBrainly
