-3y = x...so we sub in -3y for x in the other equation
-x + 7y = 70
-(-3y) + 7y = 70
3y + 7y = 70
10y = 70
y = 70/10
y = 7
so we sub in 7 for y in either of the original equations to find x
-3y = x
-3(7) = x
-21 = x
so ur solution is (-21,7)
It is d 1/3
That I saw the answer for your question
Answer:
y=2/5x - 3
slope is 2/5
y intercept is -3
Step-by-step explanation:
False; consider as a counterexample the function <em>f</em> : ℝ→ℝ defined by
![f(x)=\begin{cases}-3&\text{for }x\neq2\\0&\text{for }x=2\end{cases}](https://tex.z-dn.net/?f=f%28x%29%3D%5Cbegin%7Bcases%7D-3%26%5Ctext%7Bfor%20%7Dx%5Cneq2%5C%5C0%26%5Ctext%7Bfor%20%7Dx%3D2%5Cend%7Bcases%7D)
Clearly <em>f</em> approaches -3 as <em>x</em> gets closer to -2, but neither limit from either side is equal to the function's value at <em>x</em> = 2 (that is, -3 ≠ 0), so <em>f</em> is not continuous.
Answer:
Step-by-step explanation:
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