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2 years ago

11

Ortencia made the following grades on her tests: test #1, 90; test #2, 80; test #3, 95; test #4, 90; test #5, 85. She wants to p

lot her progress on a coordinate plane where the test number is on the x-axis and the test grade is on the y-axis.
What is the range?

1 answer:

Sergio [31]2 years ago

3 0

The range is the highest number to the lowest number. so 80 and 95 with 15 point in between

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Identify which line from the graph the following right triangles could lie on.

qaws [65]

Answer:

Step-by-step explanation:

Slope of line A = $\frac{\text{Rise}}{\text{Run}}$

= $\frac{9}{3}$

= 3

Slope of line B = $\frac{9}{6}$

= $\frac{3}{2}$

Slope of line C = $\frac{6}{8}$

= $\frac{3}{4}$

5). Slope of the hypotenuse of the right triangle = $\frac{\text{Rise}}{\text{Run}}$

= $\frac{90}{120}$

= $\frac{3}{4}$

Since slopes of line C and the hypotenuse are same, right triangle may lie on line C.

6). Slope of the hypotenuse = $\frac{30}{10}$

= 3

Therefore, this triangle may lie on the line A.

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= $\frac{3}{4}$

Given triangle may lie on the line C.

8). Slope of hypotenuse = $\frac{21}{14}$

= $\frac{3}{2}$

Given triangle may lie on the line B.

9). Slope of hypotenuse = $\frac{36}{24}$

= $\frac{3}{2}$

Given triangle may lie on the line B.

10). Slope of hypotenuse = $\frac{48}{16}$

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Given triangle may lie on the line A.

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2 years ago

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faust18 [17]

Answer:

The slope is

5

3

.

The y-intercept is

−

10

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Explanation:

5

x

−

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is the standard form for a linear equation. The slope-intercept form is

y

=

m

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+

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, where

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is the slope, and

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is the y-intercept. To convert from standard form to slope-intercept form, solve the standard form for

y

.

5

x

−

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Subtract

5

x

from both sides of the equation.

−

3

y

=

30

−

5

x

Divide both sides by

−

3

.

y

=

30

−

3

−

5

x

−

3

=

y

=

−

10

+

5

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x

Rearrange the right hand side.

y

=

5

3

x

−

10

m

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5

3

,

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graph{y=5/3x-10 [-10, 10, -5, 5]}

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Answer:

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It’s d, looks like you got it already! With ratios, just pay attention to not only the numbers but order of the words as well, so you can be sure the ratio follows the problem.

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