How many roots does the quadratic function h(x)+=x2^2-3x+6 have
1 answer:
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Given:
The phrase is "Wally mowed two more lawns than he mowed last week".
To find:
The expression that models the given phrase.
Solution:
Let the number of lawns mowed by Wally last week be n.
We know that, we use plus sign "+" for "more".
If Wally mowed two more lawns than he mowed last week, then the lawns mowed by the Wally this week is the sum of n and 2.
Lawns mowed this week =
The required expression for the phrase "Wally mowed two more lawns than he mowed last week" is n+2.
Therefore, the correct option is A.
Given:
The points where the graph crosses the <em>x</em>-axis are -1 and 3.
The point where the graph touches the <em>x</em>-axis is at 5.
The objective is to find the correct equation of the function.
Explanation:
The equation representing the point <em>x</em> = -1, crossing the <em>x</em>-axis can be represented as,
Similarly, the equation representing the point <em>x</em> = 3, crossing the <em>x</em>-axis can be represented as,
Similarly, the equation representing the point <em>x</em> = 5, touching the <em>x</em>-axis can be represented as,
By combining all the equations of the graph, the function can be represented as,
Hence, option (B) is the correct answer.