Answer :
Answer:Straight-line equations, or "linear" equations, graph as straight lines, and have simple variable expressions with no exponents on them. If you see an equation with only x and y – as opposed to, say x2 or sqrt(y) – then you're dealing with a straight-line equation.
There are different types of "standard" formats for straight lines; the particular "standard" format your book refers to may differ from that used in some other books. (There is, ironically, no standard definition of "standard form".)
Step-by-step explanation:
slope intercept form is y= mx+b
I find it easier to start with point slope & then convert to slope intercept.
- point slope form is
y-y1 = m(x-x1)
(m is the variable representing slope)
m=-2
y+6 = -2(x-8)
now, distribute
y+6 = -2x+4
subtract 6 on both sides
y= -2x-2
I find it easier to start with point slope & then convert to slope intercept.
- point slope form is
y-y1 = m(x-x1)
(m is the variable representing slope)
m=-2
y+6 = -2(x-8)
now, distribute
y+6 = -2x+4
subtract 6 on both sides
y= -2x-2