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A function f crosses the x axis where f(x) = 0.
So the function f(x) = x^2-6x+8 crosses the x axis where x^2-6x+8 =0.
x^2-6x+8 can be factored:
(x + 4) (x -2) = 0
When x = -4, f(x) = 0.
and When x = 2, f(x) = 0.
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What is x plus 2y equals -8 in slope intercept form?
-6
What is y intercept and x intercept of y x plus 8?
To find the y intercept put zero in for x and solve. To find the x intercept put zero in for y and solve. (0,8) and (-8,0)
Find the x and y intercepts of -2x plus 4y equals 8?
X intercept = -4 Y intercept = 2
Write equation x plus y equals 8 in slope intercept form?
y = -x + 8
What is the x and y intercept of y equals 3x-8?
11
What is the x- intercepts and y- intercept of -x plus 2y equals 8?
Set y = 0 -x = 8 so that x = -8 is the x-intercept. Set x = 0 2y = 8 so that y = 4 is the y-intercept.
What is x plus 2y equals -8 in slope intercept form?
-6
What is the x and y-intercepts of the equation -3x plus y equals -8?
-11
What is y intercept and x intercept of y x plus 8?
To find the y intercept put zero in for x and solve. To find the x intercept put zero in for y and solve. (0,8) and (-8,0)
Find the x and y intercepts of -2x plus 4y equals 8?
X intercept = -4 Y intercept = 2
What is the y intercept for y equals x plus 8?
Add 8 to the x value, so f.e. If x=4, the y intercept = 4+8 =12 No, the y intercept is the value of y when the value of x = 0, so the y intercept of the equation is 8. In the general form y = mx + b, b will always be the y intercept.
Write equation x plus y equals 8 in slope intercept form?
y = -x + 8
What are the intercepts for the line -4x plus y equals 8?
-4x + y = 8At the x-intercept, 'y' is zero.-4x = 8-x = 2x = -2At the y-intercept, 'x' is zero.y = 8
Rewrite the given equation in slope intercept form x plus y equals 8?
y=-x+8
Find the x-intercept of the equation x plus 2y equals 8?
x+2y=8 The x-intercept is the value of x when y=0, therefore substitute y=0 into the equation: x+0=8 therefore, x=8 The coordinates of this point is (8,0)
What is y equals x plus 8?
y=x+8 is a linear equation. Y is the Y point on a graph, X is the slope, and 8 is the y intercept
Y intercept of 2y equals -6x plus 8?
2y = -6x + 8 The y intercept occurs when x = 0 2y = 8 therefore y = 4
