I did not understand quite well, but I am assuming two possibilities, I hope it will be helpful.
If you meant what is the result 4x^2-6 if x equals to 3:
4(3)^2-6
12^2-6
144-6
=138
If you meant 4x(2)-6
4(3)(2)-6
12(2)-6
24-6
=18
Hope I could help!
Answer:
Step-by-step explanation:
Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis
change in the value of y = y2 - y1
Change in value of x = x2 -x1
y2 = final value of y
y 1 = initial value of y
x2 = final value of x
x1 = initial value of x
From the information given,
y2 = - a
y1 = a
x2 = 0
x1 = 0
Slope = (- a - a)/0-0 = -2a/0 = 0
2) equation of the line is represented in the slope intercept form as y = mx + c
Where
m = slope
c = intercept.
To determine c, we would substitute y = a, x = p and m = 0 into y= mx + c. It becomes
a = 0×p + c
c = a
The equation becomes
y = a
3) y intercept,c = a
4) the slope of a line perpendicular to the given line is a negative reciprocal of the slope of the given line. Therefore,
Slope = - 0 = 0
12%=(3+10%*x)/(20+x)
x=30
add 30 pounds of the second alloy
Y= 40+(20x), where you asking for something like that?
