You seemed to have gotten the equation wrong, but don't worry I'll help you
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First you simplify the equation
4=<span><span><span>(-1)</span><span>(-3)</span></span>+b
(A negative times a negative is a positive)
</span>4 = 3 + b
(Flip the equation)
b + 3 = 4
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Then you subtract 3 from each side
<span><span>b+3-</span>3</span>=<span>4-3
</span>b = 1 is your answer
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y = -1x - 7 is wrong as well
To find the answer just add -4 on each side for y+4=-<span>1<span>(x-3)</span></span>
<span>y+4+-4</span>=-<span>x+3+-4
</span>y = -<span><span>x - </span><span>1 is the answer
</span></span>To graph, plot points on Y-intercept of -1 and place another point at (-2,1)
I think it is the third one. If it’s not the third one then it’s the first one.
Please take just a few seconds longer and write "inverse cosine" as either:
arccos x or
-1
cos x or
cos ^(-1) x
A is true, since for any given x in [0, pi], there is exactly one associated y-value.
C is false. For one input (x) value, there is more than 1 associated y-value.
Following order of operations or PEMDAS, we do parentheses first, so
7-3 = 4.
Now we have (4)4.
This is simple multiplication. 4 * 4 = 16, which is your answer.
