which point lies on the line y=-2x-3?
Answers:
a.) (-2,-1)
b.) (-2,1)
c.) (-1,-2)
d.) (1,1)
this is a guesss and solve problem... they gave you the equation just pick an answer and plug the first number in that answer for x in the equation and solve for y, if the solution you get for y is the same as the second number in the answer you pick that is the correct answer. for example imma achoose D(i know its not right already but i don't want to do it for you or else you wont know how to) D(1,1) the first number will be x- y= -2(1)-3 will give me the answer that y=-5 negative 5 doesnt match the second number in the answer D which is suppose to be 1 so D is not right
To determine which point lies on the line y = -2x - 3, we need to substitute the x and y values of each point into the equation and see if the equation holds true.
Let's check each option:
a.) (-2, -1)
Substitute x = -2, y = -1 into the equation: -1 = -2(-2) - 3
Simplifying, we get: -1 = 4 - 3
-1 = 1
This is not true, so (-2, -1) does not lie on the line.
b.) (-2, 1)
Substitute x = -2, y = 1 into the equation: 1 = -2(-2) - 3
Simplifying, we get: 1 = 4 - 3
1 = 1
This is true, so (-2, 1) lies on the line.
c.) (-1, -2)
Substitute x = -1, y = -2 into the equation: -2 = -2(-1) - 3
Simplifying, we get: -2 = 2 - 3
-2 = -1
This is not true, so (-1, -2) does not lie on the line.
d.) (1, 1)
Substitute x = 1, y = 1 into the equation: 1 = -2(1) - 3
Simplifying, we get: 1 = -2 - 3
1 = -5
This is not true, so (1, 1) does not lie on the line.
The point that lies on the line y = -2x - 3 is option b.) (-2, 1).