a magazine is offering a special subscription rate of $30 per year for 12 issues the regular price for the magazine is $4 per is
2 answers:
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Answer:
m = - 1/4
Step-by-step explanation:
When two line is perpendicular to each other the product of them is - 1
So let the other line be B
Gradient of B = t
Gradient of A = 4
therefore m = - 1/4