Answer:
Step-by-step explanation:
Please, share the answer options next time.
1) f(x) = 2x^2– x – 6 is a quadratic function.
2) The coefficients of this polynomial are a = 2, b = -1 and c = -6
2) Its graph opens up.
3) The x-value of the axis of symmetry and the vertex is x = -b / (2a), which here comes out to x = -(-1) / [2(2)], or x = 1/4
4) the y coordinate of the vertex is f(1/4), or -6 1/8
5) The vertex is at (1/4, -6 1/8)
6) The y-intercept is at f(0): 2(0)^2 - 0 - 6 = -6 => (0, -6)
Answer:
Step-by-step explanation:
Connect points I and K, K and M, M and I.
1. Find the area of triangles IJK, KLM and MNI:
2. Note that
3. The area of hexagon IJKLMN is the sum of the area of all triangles:
Another way to solve is to find the area of triangle KIM be Heorn's fomula, where all sides KI, KM and IM can be calculated using cosine theorem.
Slope is -12 and y-intercept is 3
Answer:
y intercept: (0,-13)
x intercept: (13/5, 0)
Step-by-step explanation:
To find the y intercept, x has to equal zero. So, plug it in. The equation becomes y=-13.
Since x is zero, the point becomes (0,-13)
To find the x intercpet, y has to equal zero. So, plug it in. The equation becomes 0=5x-13.
move 13 to the other side
13=5x
divide by 5
13/5=x
Since y is zero, the point becomes (13/5,0)
hope this helps!
Answer:
0.000000386
Step-by-step explanation: