Since the temperature keeps increasing by 2°F each hour for the next 7 hours, the graph will be a straight line graph.
Let T be temperature
t be the time at temperature T
At t₁ = 0, T₁ = 43°F
At t₂ = 1, T₂ = 45°F (temperature increase by 2°F)
Using the straight-line formula to get the equation of the graph. The equation is expressed as T = mt + b
- m is the slope
- b is the intercept
Get the slope
Get the intercept
Substitute m = 2 and the coordinate (0, 43) into the expression
43 = 2(0) + b
43 = b
b = 43
Get the equation of the line
T = 2t + 43
Graph the equation of temperature over time
Learn more here: brainly.com/question/17003809
Let's write T for Teagan's score and E for Emma's score.
Also, let's write an equation
E = 2T + 4
E = 3
2T + 4 = 3
subtract 4 from both sides
2T = -1
divide both sides by 2
T = -1/2
To see of this is correct:
2T + 4 = 3
2(-1/2) + 4 =?= 3
-1 + 4 =?= 3
3 = 3
Hope this helps
When x = 2 then f(x) = 2^2 +2(2) -1 = 4 + 4 - 1 = 7
when x = 3 then f(x) = 3^2 +2(3) -1 = 9 + 6 - 1 = 14
when x = -3 then f(x) = (-3)^2 +2(-3) -1 = 9 - 6 - 1 = 2
(-3,2) (2, 7) and (3,14)
answer
Pairs
2 ------> -3
14 ------> 3
7 ------> 2
The correct answer is D.
This is because a converse statement switches the places of the hypothesis and conclusion.