hannahking1869
05.12.2019 •
Mathematics
What are the x-intercepts of the quadratic function?
f(x)=x^2+2x−24
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Ответ:
x²+6x-4x-24
x(x+6) -4(x+6)
(x-4)(x+6)
zeros= x=4 and x=-6
Ответ:
x= -6 and x= 4
Step-by-step explanation:
WE need to find x intercepts for the given quadratic function
To find x intercept we set f(x)=0 and solve for x
To solve for x we need to factor x^2 +2x-24
We need to find out two factors whose product is -24 and sum is 2
6 times -4= -24 and 6-4= 2
Break the middle term 2x using factors 6x-4x
0=(x+6)(x-4)
now we set each factor =0 and solve for x
x+6 =0 , so x=-6
x-4=0 so x= 4
x= -6 and x= 4
Ответ:
The line has a slope of -7/6
Step-by-step explanation:
To find the slope of a line, you only need two of its points. Slope is defined as the difference along the y axis divided by the difference along the x axis.
So let's take any two points, and find that slope. We'll use (-8, 8) and (-2, 1):
So the slope of the line -7/6