Answer:
Choice 1. -3x + 2y = 5.
Step-by-step explanation:
The slope of the line = y2-y1/x2-x1
= (4 - 1) / (1 - (-1))
= 3/2.
To find the equation of the line we use the point-slope form of the equation of a line:
y - y1 = m(x - x1) where m = slope and (x1, y1) is a point on the line. So using m = 3/2 and the point (1, 4):
y - 4 = 3/2(x - 1)
y - 4 = 3/2 x - 3/2
Multiply through by 2:
2y - 8 = 3x - 3
-3x + 2y = -3 + 8
-3x + 2y = 5 (answer).
Answer:
-4<f
Step-by-step explanation:
i am pretty sure this is correct, haven´t done it since freshman year haha.
So question one I have B , question 2 is C, question 3 is B
Answer:
xy = 3
Step-by-step explanation:
The expression to be evaluated is:
By some algebraic handling:
Where:
There is one possible solution:
x = 3, y = 1
And consequently,
xy = 3
If you would like to know how many solutions does the system of two equations have, you can calculate this using the following steps:
x = -4y + 4 ... x + 4y = 4 /*(2)
2x + 8y = 8
____________
2x + 8y = 8
<span>2x + 8y = 8
</span>____________
0 = 0
The correct result would be infinitely many solutions.
