Answer:
The equation of the line containing (4,2) and (3,5) in the slope-intercept form will be:
Step-by-step explanation:
Given the points




We know that the slope-intercept form of the line equation is

where m is the slope and b is the y-intercept
substituting m=-3 and the point (4, 2) to get the y-intercept i.e. b

2=(-3)4 + b
2 = -12 + b
b = 2+12
b = 14
Now, substituting b=14 and m=-3 in the slope-intercept form to determine the equation of a line in the slope-intercept.

y=(-3)x+(14)
y=-3x+14
Thus, the equation of the line containing (4,2) and (3,5) in the slope-intercept form will be:
(8+2x) -> If 8 is added to twice a number (x)
5*(8+2x) -> and this sum is multiplied by 5
5*(8+2x)=x*(-28)+2 -><span>the result is the same as if the number is multiplied by negative −28 and 2 is added to the product.
Simplifying the equations on both sides would give
40+10x=-28x+2 transpose -28 to the left side and 40 to the right side
28x+10x=2-40
38x=-38
x=-1</span>
Answer:
38.6
Step-by-step explanation:
(2x - y)(x - 8y + 7) =
2x(x - 8y + 7) - y(x - 8y + 7) =
2x^2 - 16xy + 14x - xy + 8y^2 - 7y =
2x^2 - 17xy + 8y^2 + 14x - 7y <===