Answer:
x = -1/3
Step-by-step explanation:
I think you mean 25x+5=10x
Answer:
We can write this equation in slope-intercept form
y
=
m
x
+
b
where
m
is the slope and
b
is the
y
-intercept.
We know
m
=
−
4
and
b
=
6
, so we can insert these into the equation to get
y
=
−
4
x
+
6
Hope this helps!
Answer:
$3.00
Step-by-step explanation:
First you will see how much ounces 1 pound is and it will be 16 then if you multiply 16 by 2 you get 32 so I'd be 2 pounds and If 1 pound is $1.50 then 2 pounds would be $3.00
Hello from MrBillDoesmath!
The questions are a bit unclear but here's my best shot
Answer:
a. "c" = 0
As x=0 is a root of f(x) = ax^2 + bx + c (I think this is the equation you had in mind. Please correct me if I'm wrong)
a(0)^2 + b(0) + c = f(0) = 0.
As any number times 0 is 0 this is equivalent to
0 + 0 + c = 0. So c = 0!
b. From part a (above) f(x) = ax^2 + bx. Suppose x is an extremely large number (positive or negative). If "a" is positive then f(x) is a large positive number so f(x) is large and looks like the letter "U". But if "a" is negative and x large (positive or negative), then f(x) is a large negative number, meaning the function looks like an upside-down "u". IN short, f(x) is a parabola that opens upward if a > 0 and opens downward if a < 0.
Given that f(x) = ax^2 + bx = x(ax+b), f(x) = 0 when x = 0 or (ax + b) = 0. The latter happens when ax = -b or x = - (b/a)
c. ax^2 + bx = 0
Ragards, Mr B.
