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4 years ago

Y and x have a proportional relationship, and y = 24 when x = 16 What is the value of x when y = 36?

1 answer:

5 0

To solve, we need to know by how much y increase to know how much to increase x by:

First step, divide the new value, 36 by the original 24:

36/24 = 1.5

Now, multiply the 1.5 by the x to get the new increase value:

16 x 1.5 = 24

So, x= 24 when y= 36

Hope this helps!

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3 years ago

Which of the following is correct equation for the trend line in the scatter plot? A. Y= 2/5 x -2 B. Y= 5x-1 C. Y= 5x +5 D. Y= -

Dafna11 [192]

Answer: C. Y = 5x + 5

Step-by-step explanation:

We need to write, or decide on, the equation for the blue line as this line represents the trend line for this scatter plot. We will write this in slope-intercept form. See attached for a visual.

First, we will find our slope. We will use $\frac{rise}{run}$ for this since we have a graph with clear points. See attached, we count up [5] and then count to the right [1] for a slope of 5.

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Now, we will find our y-intercept. This is where the line intersects the y-axis. The line hits the y-axis at point (0, 5) giving us a y-intercept of 5.

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