My teacher said I did this wrong please help I don’t know what to do

Mathematics

2 answers:

ss7ja [257]3 years ago

8 0

Answer: The correct answer is F. y = -1/3x +4

Step-by-step explanation:

Looking at the graph and all the answer choices, we automatically know that we have a y-intercept of 4. So, starting at the origin (0,0), we go up 4 units to (0,4). This much is self explanatory.

Now Looking at either the point above the y-intercept or the point below, we know that we will either be going up one unit and to the left three units (for the point above the y-intercept), or down one unit and to the right three units (for the point below the y-intercept).

Because slope intercept form uses "rise over run", we know that this means the slope is 1/3, and since the line is going in the negative direction, we have a negative slope and therefore a negative 1/3.

If we put this together to create our y = mx + b, we will get -1/3x +4.

stiv31 [10]3 years ago

3 0

Answer: F. y=-1/3x+4

Step-by-step explanation: If you start from the starting point(0,4), you go up 1 and left 3. Since you're going left, it is negative. That gives you -1/3x. Then add the y intercept and you'll get y=-1/3x+4.

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If ghj=lmk with a scale factore of 5:6 find perimeter of ghj

jeyben [28]

Perimeter of the triangle GHJ is 35cm.

<h3>What is perimeter?</h3>

A perimeter is a closed path that includes, encircles, or delineates a one-dimensional length or a shape with two dimensions.

The perimeter's units are equal to the sides of a polygon's length.

Given Data

The perimeter of a triangle is, by definition, the total length of its sides.

Next, the triangle LMK's perimeter is:

ΔLMK = 14+ 11 + 17

ΔLMK = 42

The perimeter of the triangle LMK must be multiplied by the scale factor if both triangles are congruent and the scale factor is 5:6 (which can be written as a fraction: $\frac{5}{6}$ ).