Is Kelly correct in stating that…

Mathematics Questions

Is Kelly correct in stating that the initial value of function G is greater than that of function H, given that function G has a slope of 1 and passes through the point (0, -1), while function H passes through the points (8, 3) and (10, 4)?

Short Answer

The initial value of function G is -1, as it passes through the point (0, -1). Similarly, the initial value of function H is also -1, calculated using the slope from two points, leading to the conclusion that both functions have the same initial value.

Step-by-Step Solution

Step 1: Understand the Initial Value of Function G

The initial value of a function is determined by its y-intercept, which occurs when x equals zero. For function G, it is specified that it passes through the point (0, -1). Thus, the initial value of function G is clearly identified as -1.

Step 2: Calculate the Initial Value of Function H

To find the initial value of function H, we must first calculate the slope using two given points: (8, 3) and (10, 4). The slope (m) can be determined using the formula: m = (y2 – y1) / (x2 – x1). After plugging in the coordinates, we find:

  • Slope (m) = (4 – 3) / (10 – 8) = 1 / 2

Next, we can use the slope-intercept form to find the equation of the line and subsequently the y-intercept, which turns out to be -1 as well.

Step 3: Compare the Initial Values

Now that we have the initial values for both functions, we can summarize our findings: the initial value of function G is -1 and the initial value of function H is also -1. Therefore, since both initial values are equal, we conclude that Kelly’s assertion is incorrect, as both functions share the same initial value.

Related Concepts

Initial value

The value of a function when the input is zero, often represented by the y-intercept on a graph

Slope

The measure of the steepness or incline of a line, calculated as the change in y over the change in x between two points on the line

Slope-intercept form

A way of expressing the equation of a line in the form y = mx + b, where m represents the slope and b represents the y-intercept.

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