Use properties of alternate angles then apply trigonometry
9514 1404 393
Answer:
y -2 = -2/3(x +4)
Step-by-step explanation:
There are several different forms of the equation for a line. Each is useful in its own way. Here, the line crosses the y-axis at a point between integer values, so using that intercept point could be problematical. That suggests the "point-slope" form of the equation for a line would be a better choice.
That form is ...
y -k = m(x -h) . . . . . . . line with slope m through point (h, k)
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The two marked points are (-4, 2) and (5, -4). All we need is the slope.
The slope is given by the formula ...
m = (y2 -y1)/(x2 -x1) . . . . . . . . where the given points are (x1, y1) and (x2, y2)
m = (-4 -2)/(5 -(-4)) = -6/9 = -2/3
Using the first point, the equation for the line can now be written as ...
y -2 = -2/3(x -(-4))
y -2 = -2/3(x +4)
Answer:
d. f opens upward with a y-intercept at (0, 2); h opens downward with a y-intercept at (0, -2)
Answer:
Step-by-step explanation:
Co-ordinate plane is a plane which is formed by a horizontal line called the x-axis and a vertical line which is called the y-axis.
The points on a co-ordinate plane is represented as:
where 
represents the 
while 
represents the 
.
To plot the points:
1) 
For the point the 
which means 0 on x-axis, and 
which means -5 units on y-axis.
2) 
For the point the 
which means 2 units on x-axis, and 
which means 4 units on y-axis.
Answer:
x= -4
Step-by-step explanation:
Using BODMAS, bracket first, multiply all in the bracket with -2, getting the answer, collect like terms and the answer is gotten
