Respuesta :

i’m not sure what the first one is, but number 4 is A) y=2x+4
atso

Answer:

3) B

4) A

Step-by-step explanation:

3)

Formula: [tex]y = mx + b[/tex]

Slope: [tex]\frac{-3 - 1}{-4 - (-2)} =2[/tex]

Next, I substituted the numbers from both the chart and the slope.

[tex]y=2x+b[/tex]

[tex](x, y) --> (1, 7)[/tex]

[tex]\\7=2(1)+b\\[/tex]

[tex]7=2+b[/tex]

[tex]b=5\\[/tex]

Your final equation should be, [tex]y=2x+5[/tex].

4)

From the graph you can see (0, 4) is the y-intercept and the spaces are moving up twice and once to the right, making the slope 2.

Your answer should be, [tex]y=2x+4[/tex].

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