2 years ago

Which of the following does not represent the function f(x)=2x+3

1 answer:

5 0

C is incorrect.
While the slope is 2, (calculated by rise over run), the y intercept is incorrect. The equation 2x+3 is written in slope intercept form (mx+b where b is y intercept). Therefore we can tell that 3 should be the y intercept. The y intercept on the graoh, however, is -3.

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Find the distance between (-2, 8) and (11, 2). Round to the nearest hundredth.

andrew11 [14]

Answer: 14.32 units

Step-by-step explanation:

The formula for calculate the distance between two points is:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

In this case, given the points (-2,8) and (11,2), we can identify that:

$x_2=11\\x_1=-2\\\\y_2=2\\y_1=8$

Therefore, we just need to substitute values into the formula in order to calculate the distance between the given points. This is (Rounded to the nearest hundred):

$d=\sqrt{(11-(-2))^2+(2-8)^2}\\\\d=14.32\ units$