Answer:
Point = (6, 8)
Rate of change = -1
Rate of change = 17.5
$0.62
Explanation:
Any point on the coordinate plane is (x, y).
- x represents the location of the point with respect to the x-axis.
- y represents the location of the point with respect to the y-axis.
Therefore the coordinates of the point shown are (6, 8).
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The rate of change of a linear function is the slope.
The slope-intercept form of a linear function is:
- y = mx + b
(where m is the slope and b is the y-intercept).
Given function: y = -x + 5
The given function is in slope-intercept form.
Therefore, the rate of change (slope) of the function is -1
Given function: y = 17.5x + 19
The given function is in slope-intercept form.
Therefore, the rate of change (slope) of the function is 17.5
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Store A
9 bottles of apple juice = $2.79
⇒ 1 bottle of apple juice = $2.79 ÷ 9 = $0.31
Store B
18 bottles of apple juice = $16.74
⇒ 1 bottle of apple juice = $16.74 ÷ 18 = $0.93
To calculate how much less a bottle of apple juice at Store A is than at Store B, subtract the cost of one bottle of apple juice at Store A from the cost of one bottle of apple juice at Store B:
⇒ $0.93 - $0.31 = $0.62