Answer:
w(t)=0.8t+17.9
Step-by-step explanation:
By reading the question thoroughly you can determine that w is the y axis/y values and t is the x axis/x values.
First we need to find the slope, so we take two sets of coordinates so we can determine the slope. for this we use the following formula:
[tex]\frac{y1-y2}{x1-x2}[/tex]
So now i am going to use the coordinates (1,18.7) and (2,19.5)
Now i plug in the numbers:
[tex]\frac{(19.5)-(18.7)}{(2)-(1)}[/tex]
It is very important that the coordinates do not get mixed up at all and stay with the other value they belong with
Simplify:
[tex]\frac{0.8}{1}[/tex] or 0.8/1
Since any number divided by one is itself, we have the slope.
To determine the y intercept, we look at the graph, the x or t value is at 1, so all we have to do is subtract 0.8 from the y value where x=1:
Subtract:
18.7-0.8=17.9
1-1=0
(0,17.9)
Now that we have all of our components, we put the equation together like a puzzle:
w(t)=0.8t+17.9
I hope this helps u pls give a brainliest and a thx ;)
