Directions – determine if the two lines are parallel, perpendicular, or intersecting (neither). if necessary, convert each equation to slope-intercept form (y = mx + b). l1: 4x+5y=15 l2: 4y=5x−12

Perpendicular

Step-by-step explanation:

First note:

Lets check, first we need to convert them to slope intercept form (y = mx + b), where m would be the slope.

L1:

4x + 5y = 15

5y = -4x + 15

y = -4/5x + 3

L2:

4y = 5x - 12

y = 5/4x - 3

Slope of L1 is -4/5 and Slope of L2 is 5/4

Are they negative reciprocals of each other? Yes, because multiplying the slopes would give us "-1"

So the lines are Perpendicular

5+2x=a

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answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.