Choose the graph that matches the following system of equations: 4x + y = −1 3x + 2y = 8 : 1) picture of coordinate plane with line y equals negative 4x minus 1 and line y equals negative 3 over 2 times x plus 4. They intersect at negative 2 , 7 2) picture of coordinate plane with line y equals 4x minus 1 and line y equals negative 3x plus 8. They intersect at 1.29, 4.14 3) picture of coordinate plane with line y equals negative 4x minus 1 and line y equals 3 halves x plus 8. They intersect at negative 1.64, 5.55 4) picture of coordinate plane with line y equals 4x minus 1 and line y equals negative 3x plus 4. They intersect at 0.71, 1.86

answer:     true

step-by-step explanation:

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

40 x 50 = 2000

step-by-step explanation: