B. Write the equation in slope intercept form. (y=mx + b). Remember, m is the slope, b is the y intercept (where x=0).

Mathematics

1 answer:

sashaice [31]3 years ago

8 0

Answer:

y=5x+10

Step-by-step explanation:

Use two points from the table: (1, 15) and (2, 20) to find m (m= $\frac{y_2-y_1}{x_2-x_1}$ )

m= $\frac{20-15}{2-1}$

m=5

Use another point from the table as x and y: (25, 3) in the equation y=mx+b (we just found m=5). Solve for b

y=mx+b

25=5(3)+b

10=b

Therefore, knowing m and b the equation in slope intercept form is:

y=5x+10

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PLEASE help !!! I’m struggling and I suck at math. Can someone answer this for me? For points and brainly !

Helen [10]

Answer:

$\huge\boxed{2329 \ \text{pounds}}$

Step-by-step explanation:

In order to solve this equation, let's see what we already know.

We know two points on the graph <em>which we can use to find the slope</em>

That's about it.

However, this can come useful to find the slope between the two points, which is the slope for the entire graph (since this is linear). The slope between two points is usually defined as $\frac{\Delta y}{\Delta x}$ (change in y / change in x). Our two points are (18, 2017) and (48, 2212).

The change in y between our two points is $2212-2017 = 195$ , and the change in x is $48 - 18 = 30$ . Our slope will then be $\frac{195}{30}$ , which comes out to be approximately 6.5. Therefore, our slope is 6.5.

Now that we know the slope, we can substitute inside our equation in slope intercept form.

$y = 6.5x+b$

We have yet to find b, the y-intercept (how much the plane itself weighs). To find b, we can substitute a point on the graph into the equation and solve for b. We know that the point (18, 2017) is on the graph so let's use that.