Two distinct roots means two real solutions for x (the parabola needs to cross the x-axis twice)
Vertex form of a quadratic equation: (h,k) is vertex
y = a(x-h)^2 + k
The x of the vertex needs to equal 3
y = a(x-3)^2 + k
In order to have two distinct roots the parabola must be (+a) upward facing with vertex below the x-axis or (-a) downward facing with vertex above the x-axis. Parabolas are symmetrical so for an easy factorable equation make "a" 1 or -1 depending on if you want the upward/downward facing one.
y = (x-3)^2 - 1
Vertex (3,-1) upwards facing with two distinct roots 4 and 2
y = x^2 -6x + 9 - 1
y = x^2 -6x + 8
y = (x - 4)(x - 2)
Answer:
The equivalent expression is 
A is correct
Step-by-step explanation:
We are given two complex number and need to multiply it. To find equivalent fraction.
Using Binomial product property: (a+b)(c+d)=ab+ad+bc+bd
Combine the like term and simplify
Hence, The equivalent expression is
Answer:
4:1
Step-by-step explanation:
22/5.50
divide numerator by denominator and denominator by denominator
22/5.50=4
5.50/5.50=1
4/1 or 4:1
She will have to add 3 more dollars so 3 more days
