0
None, it touches it at x = -3.
For a quadratic y = ax2 + bx + c, it will meet the x-axis (y = 0) either 0, 1 or 2 times dependent on: b2 - 4ac. If b2 - 4ac is:
- > 0 the line meets the x-axis twice, so crosses it twice
- = 0 the line meets the x-axis once, so it does not cross it but only meets it.
- < 0 the line does not meet the x-axis at all, so cannot cross it.
for y = x2 + 6x + 9:
b2 - 4ac = 62 - 4 x 1 x 9
= 36 - 36
= 0
so the line meets the x-axis once, but does not cross it - all the values of y are greater than, or equal to zero, but never negative.
What else can I help you with?
Were does the graph of y equals -0.5x-2 cross the x-axis?
1.5
How many times does the graph of y equals 2x2-2x 3 intersect the x-axis?
zxccvc
If the discriminant is negative the graph of the quadratic function will cross or touch the x-axis how many times?
It would not touch or intersect the x-axis at all.
In a line graph the what axis is called a y-axis?
Easy way to remember which axis is which: x is a cross (across)
In a line graph the axis is called the y-axis?
Easy way to remember which axis is which: x is a cross (across)
Where does the graph of y equals 2x-7 cross the x axis?
9
How many times will the graph of a quadratic function cross or touch the x-axis if the discriminant is positive?
It will cross the x-axis twice.
Were does the graph of y equals -0.5x-2 cross the x-axis?
1.5
When the discriminant is negative will the graph of the function cross or touch?
The graph will cross the y-axis once but will not cross or touch the x-axis.
What is the maximum number of times the graph of the quadratic function can cross the x-axis?
Two.
What is the 0.0point on a line graph where the x-axis and y-axis cross a graph?
the origin
How many times will the graph of f(x) = x^2 + 9 Cross the x-axis?
It doesn't cross the x-axis since the position the equation is in is 9 units above the x-axis and the graph never curves the other way so it will never touch the x-axis
How many times will the graph of a quadratic function cross or touch the x axis if the discriminant is zero?
Once.
Where the x-axis and y-axis cross through a graph?
The origin
What part of the graph is it when the x-axis and the y-axis cross?
The origin
How many times does the graph of y equals 2x2-2x 3 intersect the x-axis?
zxccvc
How many times does the graph of y equals -x2 plus 3 cross the x-axis A. None B. One C. Two D. Three?
The graph of y = -x^2 + 3 crosses the x-axis when y = 0. To find the number of times it crosses the x-axis, we set -x^2 + 3 = 0 and solve for x. This equation has two solutions, so the graph crosses the x-axis twice. Therefore, the answer is C. Two.
