3. The measure of one angle is ten less than four times the measure of the other angle. The sum of the measures of the two angle
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Answer:
(0,3)
Step-by-step explanation:
So we have the equation:
Recall what the y-intercept is. The y-intercept is when the graph crosses the y-axis. Therefore, at that point, the x-value is 0. So, to find the y-intercept, substitute 0 for x. Thus:
Subtract:
Square:
Add:
So, the y-intercept is at (0,3).
And we're done!
For this case we have the following function:
we have:
Where:
By definition, the discriminant of a quadratic equation is given by:
Two different real roots
Two equal real roots
: Two different complex roots
Substituting the values we have:
We have two equal real roots.
To find the intersections with the x axis, we do
We apply the quadratic formula:
Substituting the values we have:
The intersection with the x axis is
Answer:
The intersection with the x axis is