Answer:
Average rate of change is <u>0.80.</u>
Step-by-step explanation:
Given:
The two points given are (5, 6) and (15, 14).
Average rate of change is the ratio of the overall change in 'y' and overall change in 'x'. If the overall change in 'y' is positive with 'x', then average rate of change is also positive and vice-versa.
The average rate of change for two points 
is given as:
Plug in 
and solve for 'R'. This gives,
Therefore, the average rate of change for the points (5, 6) and (15, 14) is 0.80.
The slope of the line is 50. You can try looking at the equation, which is
y=50x+500
500 is your y-intercept, and is where the cost starts.
50 is your slope, since the cost goes up by $50 every time.
x is how many hours, which determines how many $50s there are.
I hope this helps. All in all, the slope is 50.
Answer:
42 games
Step-by-step explanation:
From the ratio, we can deduce that;
For every 3 games A won, B won 1
Thus, if B won 10, then A has won 3(10) = 30
From the second part;
For every 1 game won by C, B won 5
since B won 10, then C won 10/5 = 2
So the total number of games won is;
A + B + C
= 2 + 30 + 10 = 42 games
Solve by isolating x, check by plugging in the value you got for x in the original equation
4y - 6y + 9y = -2
-2y + 9y = -2
7y = -2
7 7
y = ⁻²/₇
