Which point on the graph shows the price of 6 cups of hot chocolate? Use the formula y=x÷4 to find y when x equals 6.
2 answers:
Answer:
<h2>6 cups of hot chocolate cost $1.50.</h2>Step-by-step explanation:
According to the problem, the graph is modeled by the relation
So, we can observe that x-values refer to cups of hot chocolate, and y-values refer to price in dollars.
If we need to find the proce for 6 cups of hot chocolate, we just need to replace into the given relation, as follows
Therefore, 6 cups of hot chocolate cost $1.50.
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Answer: Vertex : Maximum (2, 0)
Rules:
- (x + d)² = x² + 2dx + d² and (x - d)² = x² - 2dx + d²
- x² + 2dx = (x + d)² - d² and x² - 2dx = (x - d)² - d²
Solve:
x² - 4x + 4
x² - 2(2x) + 2²
(x - 2)²
Into vertex form: a(x - h)² + k
1(x - 2)² + 0
Identify:
vertex : (h, k) = (2, 0)
Find additional things, to graph the equation:
(i) x-intercept: (2, 0)
(ii) y-intercept: (0, 4)
Graph shown:
