Question

Identify the point (x1, y1) from the equation: y – 7 = 3(x + 2)

(–7, 2)
(7, –2)
(–2,7)
(2, –7)

Answer 1

the slope is by definition \[m=\frac{ y1-y }{ x1-x }\]
in your equation:y-7=3(x+2) you identify the slope m=3=>y-7=m(x+2)=>
-7+y=m(2+x) after you multiply with (-1)=>7-y=-m(-2-x)=>
THE POINT IS (7,-2)

Answer 2

but cant the answer be c too

Answer 3

No, and the correct answer is b as i've explained to you ^ up there
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