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)

Step-by-step explanation:

Given that a recipe of chilie requires cups of beans, to make times the recipe, Keith would need x cups of beans.

Thus:

1 recipe = cups of beans

of the recipe = x cups of beans

Therefore the equation that helps Keith find how many cups of beans he needs is: