Answer:
A. y = -5x + 11
Step-by-step explanation:
The general form of the equation of a line is given as
y - y1 = m (x - x1)
where m is the slope and x1, y1 are the coordinates of a point on the line.
m = (y2 - y1)/(x2 - x1)
Given the points (1,6) and (3, -4)
m = (-4-6)/(3-1)
=-10/2
= -5
The equation of the line will be
y - 6 = -5(x -1)
y - 6 = -5x + 5
Add 6 to both side
y = -5x + 5 + 6
y = -5x + 11
Option A
Answer:
gradient line A : 4
use the point (2,2) and (0,-6)
gradient line B : -2
use the point (4,0) and (5,-2)
Answer:
6.23*10^6
Step-by-step explanation:
We first write the answer in full notation 6,230,000.
Then we count how many decimal places it takes before we have one leading digit. Since it is six, we move the decimal place and write 6.23*10^6
Answer: fg(x) = 16x² + 32x
Method:
First you must substitute g(x) into f(x).
Where the x is in the equation f(x) substitute the equation of g(x).
So it should be fg(x) = (x4)²+ 8(x4).
Then simplify the equation to
fg(x) = 16x² + 32x
