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2 years ago

Identify the function shown in this graph.

Mathematics

1 answer:

nadezda [96]2 years ago

4 0

Answer:

Step-by-step explanation:

The functions are written in slope-intercept form.

The graph crosses the y-axis at (0,-2), so the y-intercept is -2.

You can eliminate D because its y-intercept is +2, not -2.

(1,1) and (0,-2) are points on the line.

The slope of the line is (-2-1)/(0-1) = 3

You can eliminate B because its slope is ⅓.

Eliminate C because its slope is -3, not 3.

Answer B

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timama [110]

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Step-by-step explanation:

6). Equation of the line has been given as,

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By converting this equation into y-intercept form,

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2 years ago

In trapezoid $ABCD$, $\overline{AB}$ is parallel to $\overline{CD}$, $AB = 7$ units, and $CD = 10$ units. Segment $EF$ is drawn

Mekhanik [1.2K]

Answer:

EF = 58/7

Step-by-step explanation:

If you extend both BC and AD to meet at P you get 3 similar triangles PAB, PEF, and PCD. Let's call BF = 3x and FC = 4x. Therefore the following proportions can be expressed:

BP/7 = (BP+7x)/10

10BP = 7*(BP+7x)

10BP = 7BP+49x

3BP = 49x

BP = (49/3)x

BP/7 = (BP+3x)/EF

EF = (BP+3x)*7/BP

EF = ((49/3)x + 3x)*7/((49/3)x)

EF = ((58/3)x*7*3)/(49x)

EF = 58/7

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2 years ago