Answer:
Step-by-step explanation:
4) Money per hour = Total Money / Total Hours
=> 240 / 8
=> $ 30 Per Hour
5) There is a line formula which is "y = mx + b".
In this, "m" is the slope.
"b" is the y-intercept.
"y" is the y-axis line.
"x" is the x- axis line.
y-intecept means that a point on the graph which has the x value as "0" and y value as anything.
Slope is rise / run.
So, by looking at the graph, we can tell that the y-intecept is (0,0). So, the y-intercept is 0.
Slope = y2 - y1 / x2 - x1
=> 10 - 0 / 2 - 0
=> 10/2
=> 5
So, the equation looks like y = 5x.
6) This is the same question as the above one.
=> Y - intercept = (0,5)
So, the y-intecept is +5.
Now, the equation is y = mx + 5
=> Slope.
=> Slope of the points (0,5) and (2,8).
We used points (2,8) because the line passes through these points.
=> 8 - 5 / 2 - 0
=> 3 / 2
So, the equation is y = 3/2x + 5
7) By looking at Rebecca's equation, we can tell that her hourly pay is $9.25.
For Andrew's hourly pay, we need to find the slope of the points.\
Slope = y2 - y1 / x2 - x1
=> 57 - 47.5 / 6 - 5
=> 9.5 / 1
So, the equation for Andrew looks like y = 9.5x
So, we can tell that Andrew's hourly pay is 9.5. Rebecca's hourly pay is 9.25
and it would be divide by 3.14 (pi) and then you should have the diameter. Then divide by 2 to find radius.
