The factored form of a quadratic equation is y=(2x+1)(x-5), and the standard form is y=2x²-9x-5. Which of the following statemen
ts accurately describes the graph of y?
A) The x-intercepts are -1 and 5, and the y-intercept is -5.
B) The x-intercepts are -1/2 and 5, and the y-intercept is -5.
C) The x-intercepts are -1/2 and 5, and the y-intercept is 5.
D) The x-intercepts are 1 and -5, and the y-intercept is -5.
A) The x-intercepts are -1 and 5, and the y-intercept is -5.
B) The x-intercepts are -1/2 and 5, and the y-intercept is -5.
C) The x-intercepts are -1/2 and 5, and the y-intercept is 5.
D) The x-intercepts are 1 and -5, and the y-intercept is -5.
1 answer:
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Hello!
It is given information that this triangle is a right triangle, meaning that the Pythagorean Theorem can apply here.
We can set the length of a leg as an unknown variable .
Remember that it is the whole term being squared, meaning that it'll simplify to
, not
.
This means we can plug back in to find the sides.
The hypotenuse would be , or 4.2.
And the legs would be 1.4 and 4, respectively.
Hope this helps!