Answer:
y=X+7
Step-by-step explanation:
<h3>
WWK: (what we know)</h3>
(-1, 6)
1x up 1 over 1
<h3>-----------------</h3><h3>WWN2K: (what we need to know)</h3>
y=mx+b
--------------------------
Plug 6 for y, and 1 for x.
Like this
#
We know x is -1. 6=(-1*1)+#
6=-1+#
y=X+7
-------------------
-1*1+7=6
Hey, the numbers could be a=14 and b=9:
a+b=14+9=23 and a - b = 14 - 9 = 5 :)
Answer:What is the proportionality constant in the 3y 2x equation? Since the equation can be written in the form y = kx y = k x, y varies directly with x and k. The variation constant k is 23.
Answer:
do you understand it
Step-by-step explanation:
do you understand it
It's useful to divide out the GCF first because it makes factoring easier as the coefficients are smaller requiring less steps.
Example where you don't factor GCF first...
4*-32 = -128
numerous factor pairs for 128 ... takes time to find the correct one
right factor pair is 16,-8
substitute for 8x
4x² + 16x - 8x - 32 = 0
group then factor
4x(x+4) - 8(x+4) = 0
group again
(4x-8)(x+4) = 0
Example of factoring GCF first
4x² + 8x - 32 = 0
4 is GCF
x² + 2x - 8 = 0
factor
(x+4)(x-2) = 0
Solving for x gives the same answer just less steps and simpler math when you factor GCF first.