I believe that it is graph 3 :) if it’s not right let me know.
Answer:
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form 
In this problem
Let
substitute
<u>Find the value of k</u>
For 
----> constant of proportionality
the equation is equal to
Find the value of r when m=224
substitute in the equation and solve for r
Answer:
The answer is C) y - 2 = -5/7(x - 6)
Step-by-step explanation:
Since we have the slope (-5/7) and a point (6, 2), we can just input those in for m and (x1, y1) in point-slope form.
y - y1 = m(x - x1)
y - 2 = -5/7(x - 6)
The expression will be undefined when x= -6 and 1/2.
Answer:E) There are no real solutions
Step-by-step explanation:
Looking at the equation, x^2 +20= 4
It is a quadratic equation since the highest power of x is 2
Equation x^2 +20= 4 can be re- written as
x^2 +20= 4 = x^2 +20- 4 =0
x^2 +16= 0
x^2 + 0x +16= 0 - - - - - - - - -1
Solving with the general formula for quadratic equations,
x = [-b +/- √(b^2 -4ac)]/2a
From equation 1,
a = 1 (coefficient if x^2)
b = 0 (coefficient if x
c = 16 (value of the constant)
Substituting into the formula,
x = [-0 +/- √(0^2 -4×1×16)]/2a
= [0+/-√-64]/2×1
= +/-√-64]/2
= +/-8i/2
x= +/-4i
This is a complex number so,
There are no real solutions
