Josette found 16 coins in her purse. She had 2 more nickels than pennies and 7 fewer quarters than pennies. Josette modeled the
scenario in a table and then wrote the equation p + (p + 2) + (7 – p) = 16.
Is Josette’s equation correct? If not, what was her mistake.
A): Her equation is correct.
B): The variable should have been the number of nickels.
C): Instead of finding the sum, she needed to write an equation to find the difference.
D): The number of quarters was translated incorrectly and should be p – 7.
Is Josette’s equation correct? If not, what was her mistake.
A): Her equation is correct.
B): The variable should have been the number of nickels.
C): Instead of finding the sum, she needed to write an equation to find the difference.
D): The number of quarters was translated incorrectly and should be p – 7.
2 answers:
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Answer:
The second graph is correct for this function.
Step-by-step explanation:
The company made combined profits of $40 million after 4 years. The profits increased $30 million per year.
Therefore the rate of change of profit function is 30 and the graph of profit function passing through the point (4,40).
Point slope of a linear function is
Add 40 both sides.
Therefore the profit function is defined as
Put x=0
Therefore y-intercept of function is -80. So, second graph is correct for this function.
Y-intercept of first graph is positive and y-intercept of third and fourth graph are more that -50, therefore option 1, 3 and 4 are incorrect.