I graphed the given points and used Pythagorean theorem to get the value of each side of the rhombus.

Each side of the rhombus served as the hypotenuse of the imaginary right triangle formed in the graph. The diagonals formed are mutually bisecting and have cut each diagonal in equal parts.

Pls. see attached graph.

4 0

3 years ago

PLEASE HELP

wlad13 [49]

Answer:

The mistake is in step 1 when you do -2(x+4) you do the distributive property first -2 times x is -2x that's correct but -2 times 4 is not 8 it is -8

when you multiply by negatives the answer will always be a negative unless your multiply 2 negative number together then itll be positive ex. 4 × -4 = -16 (negative) but -4 × -4 = 16 (positive)

4 0

3 years ago

C.) y=x2 + 4x - 1 a= b = c. Vertex Axis of Symmetry:

Savatey [412]

Answer:

a=1

b=4

c=-1

Axis of cemetry and vertex:x=-2

Step-by-step explanation:

x=-b/2a

x=-4/2(1)

x=-2

3 0

4 years ago