In order to prove that two lines are parallel to each other, you need to show that they have the same slope.
Line 1 is perpendicular to a line that has slope m, thus it has a slope of -1/m.
Line 2 is perpendicular to the same line with slope m, thus it has a slope of -1/m.
Line 1 and Line 2 have the same slope so they are parallel.
The function would do 3 things
1. flip horizontally, because of the negative applied to the slope
2. widen, because of a fractional slope between -1 and 0 (-2/7 makes the rise shorter than the run, so the function widens by going 7 units out for every 2 units down)
3. shift down 7 units, because the initial y-intercept would be changed from, say, 8 to 1. this would bring the graph downwards by 7 units
Answer: x=-1 and y=6
Steps:
So two of the equations are, " 8x+y=-2" and " -5x-2y=-7 "
8x+y=-2
8x= -2-y
x= (-2-y)/8
Now place this equation for x on the other equation.
-5 * {(-2-y)/8} -2y=-7
(10 + 5y)/8 -2y = -7
(10 + 5y - 16y)/8 = -7
10 - 11y = -7 * 8
-11y= -56 - 10
y= - 66/-11
y= 6
Now place the value of y in the first equation
8x + 6 = -2
8x= - 2 - 6
x= -8/8
x= -1
Brainliest please if I am correct!
If it descends, it means it goes down/ decreases. so 90-105, will get you to negative 15 (-15)