Note the squares...
13 is possible because it is a sum of two squares (integers) 9 + 4 .. use (0,3) & (2,0) ... get the square roots and place on different coordinate axes... for a simpler value.
but there is none for 15...
there is one for 18 ...
18 = 3^2 + 3^2 ... try (0,3) ,(3,0) , (3,6), (6,3).
Answer:
Slope: 
Y-intercept: (0,4)
Step-by-step explanation:
Put the equation into y = mx + b form, which is y = +4. Then create a table.
X: -2, -1, 0, 1, 2
Y: 3, 
, 4, 
, 5
Basically, the distance of roots to the axis of symmetry are the same to each other. Other root is -5.6. Hope this help.
Answer:
x = 8 is a solution for the equation
Answer:
V = (5)(14 L - L^2) cm^3
Step-by-step explanation:
Let the dimensions of the rectangular base be W by L and the height be H.
The perimeter must be 28 cm, so 28 cm = 2(W) + 2(L). This reduces to
14 cm = W + L, which can be solved for either W or L. Solving for W:
W = 14 cm - L
Then the area of the rectangular base is A = W*L, or A = (14 cm - L)(L), or
A = 14L - L^2.
The volume of the box is then V = A*H.
Because H = 5 cm, the volume is V = (5 cm)A, or
V = (5 cm)(14L - L^2) cm^2
This is a quadratic equation. Putting it into standard form yields:
V = (5)(14 L - L^2) cm^3. This is the desired quadratic formula.
