Respuesta :

Answer:

y = 2x - 5

slope = 2

y-intercept = -5

Step-by-step explanation:

You first have to find out the slope.

m = 3 - (-5)/ 4 - 0 = 8/4 = 2

m = 2

slope is 2

y- intercept is -5 because the point (0, -5) crosses the y-axis

you can also find the y-intercept by plugging the slope in for m in the equation y = mx + b.

y = 2x + b

Now we use one of the points to solve for b. I'll use the point (4, 3). Plug in 4 for x and plug in 3 for y.

3 = 2(4) + b

3 = 8 + b

-8  -8

-5 = b

-5 is the y-intercept.

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