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Can you please explanation step-by-step in how they got the answer

Can you please explanation step-by-step in how they got the answer-example-1
User Huimin
by
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1 Answer

3 votes

step 1

Find out the slope of line 1

we have

2x+8y=-24

isolate the variable y

8y=-2x-24

y=-(2/8)x-24/8

y=-(1/4)x-3 -----> equation in slope-intercept form

the slope is m=-1/4

step 2

Find out the slope of line 2

48y=-12x-14

isolate the variable y

y=-(12/48)x-14/48

y=-(1/4)x-7/24

the slope is m=-1/4

step 3

Compare their slopes

m1=-1/4

m2=-1/4

the slopes are equal

that means

the lines are parallel

the answer is option A

User Rmv
by
4.1k points