I hope this helps. Keep in mind the 1/3 is slope and the 3 is y-intercept.
<h3>
Answer: 18</h3>
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Explanation:
2 cm on paper (or on screen) represents 3 meters in real life.
The backyard is 2 cm horizontally across on the screen, so it's 3 meters across in real life. This is the shorter dimension.
The longer dimension is 6 meters. We can think of it like this
2 cm : 3 meters
2*2 cm : 2*3 meters .... multiply both sides by 2
4 cm : 6 meters
The real backyard is 6 meters by 3 meters to give an area of 6*3 = 18 square meters.
I'm not sure what the ray exactly is but some examples of ray names are ray RT or ray TR. You basically switch the letters.
General vertex form:

Given :

Extract "spread factor" m

Complete the square


Write as a squared binomial and simplify the constant

Re-write to match signs of standard general form:

9/10 = x/13. Solve for x. X = 11.7.
Your answer would be 11.7oz. Hope this helps