Will bought 4 slices of pizza for $6.00.
2 answers:
Answer: The graph of line
Step-by-step explanation:
Since, here x represent the number of slices of pizza purchased, and let y represent the total cost.
And, According to the question,
Will bought 4 slices of pizza for $6.00.
Therefore, the price of one slice pizza = 6/4 = $3/2
Thus, the price of x pizza = 3x/2
But, the price of x pizza = y
Therefore, y = 3x/2
Which is the required equation of line.
And, this line passes through the origin.
If x =2 y =3
If x= 4 y = 6
If x = 8 , y= 12
Thus, the points of the line are ( 2,3), (4,6) and (8,12)
Therefore, we can plot the graph of the line with help of above information.
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Complete Question:
Jamie used the distributive property to find the product of s(t) and h(t). His work was marked incorrect. Identify Jamie's mistake. What advice would you give Jamie to avoid this mistake in the future?
s(t)•h(t)= (3x-4)(2x-8)
= 6x² - 24x -8x - 32
= 6x² - 32x - 32
Answer:
Jamie made a mistake in his second line (6x² - 24x -8x - 32), by wrongly multiplying the operation signs. The last term should be +32, not -32.
Advice: Jamie should take note of the rule that applies when multiplying signs.
Step-by-step Explanation::
To find out where exactly Jamie made mistake, let's find the product of the given functions, step by step:
s(t)•h(t)= (3x-4)(2x-8)
Using distributive property, do the following:
(this is where Jamie made mistake. -4 * -8 = +32. NOT -32.)
Add like terms
Jamie made a mistake in multiplying negative × negative. The last term in "6x² - 24x -8x - 32", should be +32. Negative × negative = +.
Therefore, it is advisable for Jamie to always take note of the rule that applies when multiplying signs.