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nany1982
05.11.2019 •
Mathematics
Which two points are on the graph of m(a) = - 3/4a-12?
choose exactly two answers that are correct.
(-9,0)
(-16, 0)
(0, 12)
(0, -12)
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Ответ:
(-16, 0) and (0,-12) are exactly two points on the graph of the given equation.
Step-by-step explanation:
Here, the given expression is :![M(a) = -\frac{3}{4} a-12](/tpl/images/0359/6584/2e09e.png)
Here, let M(a) = b
⇒The equation becomes![b = -\frac{3}{4} a-12](/tpl/images/0359/6584/c4e55.png)
Now, check for all the given points for (a,b)
1) FOR (-9,0)
Hence, (-9,0) is NOT on the graph.
2) FOR (-16,0)
Here, LHS = b = 0
and![RHS = -\frac{3}{4} (-16)-12 = 12-12 = 0](/tpl/images/0359/6584/4971c.png)
Hence, LHS = RHS = 0 So, (-16,0) is on the graph.
3) FOR (0,12)
Here, LHS = b = 12
Hence, (0,12) is NOT on the graph.
4) FOR (0,-12)
Here, LHS = b = -12
and LHS = RHS = -12
Hence, (0,-12) is on the graph.
Hence, (-16, 0) and (0,-12) are exactly two points on the graph of the given equation.
Ответ: