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1 answer:
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We are given the quadratic:
, with a=1, b=-8, c=15.
We know that the x-coordinate of the vertex, which is the point where the line of symmetry passes through is
.
Thus, the x-coordinate of the vertex is
.
Thus, the line of symmetry is x=4.
Answer: <span>B. The line of symmetry should have been 4 instead of –4. </span>
We know that the x-coordinate of the vertex, which is the point where the line of symmetry passes through is
Thus, the x-coordinate of the vertex is
Thus, the line of symmetry is x=4.
Answer: <span>B. The line of symmetry should have been 4 instead of –4. </span>
Answer: FIRST OPTION.
Step-by-step explanation:
To know which is the solution set given the inequality you need to solve for the variable "x".
You must divide both sides by 3:
Therefore, you get:
Then, the solution set is the following:
{}
You can observe that this solution set matches with the first option.