What is x? x – 15 = 40
2 answers:
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f(x) = (x - )² -
the equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 )
then the x- coordinate of the vertex is
= -
f(x) = x² - 11x + 9 is in standard form
with a = 1, b = - 11 and c = 9
= -
=
substitute this value into the equation for y- coordinate
y = ()² - 11(
) + 9
= -
+
= -
f(x) = (x - )² -
← in vertex form
Answer:
12.73 Degrees
Step-by-step explanation:
I'm going to assume some things. The height of the truck is not changing, i.e. the distance and length of the ramp are but the height stays the same.
We draw our right triangle, see photo*
We really only care about finding out what side a is so
So, since I stated that height did not change, the same process just using 32 for the hypotenuse.
