18. Given the following four lines, pick the true statement. Line 1:
Line 2:
Line 3:
3y = 4x + 3
4y = 3x - 4 3x + 4y = 8
Line 4:
4x + 3y = -6
O
A. Lines 1 and 4 are parallel
B. Lines 2 and 3 are parallel
C. Lines 2 and 4 are perpendicular
D. Lines 1 and 2 are perpendicular

Lines 2 and 4 are perpendicular

Step-by-step explanation:

Line 2: 4y=3x-4

y=3/4x - 1

Line 4: 4x+3y=-6

3y=-6-4x

y=-2 - 4/3x

The two lines are perpendicular since -4/3= - (inverse of 3/4)

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).