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Gnoma [55]
3 years ago
9

NEED HELP IMMEDIATELY!!!!! PLEASE AND THANK YOU!! #14 and #15

Mathematics
1 answer:
ratelena [41]3 years ago
8 0
14. Brand A:
1.28  \div 8 = .16
Brand B:
1.68 \div 12 = .14
.16 - .14 = .02
.02 cent difference
15.
50  \times 3.8 = 190
190km seperate the cities

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Find the slope of the<br> equation below and show the work.<br> X=4
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Answer:

Undefined

Step-by-step explanation:

If a linear equation is organized in the form x=[a number], we know straight away that this line is a vertical line. This form is actually x=d, where d is the x-intercept of the line. Vertical lines do not have a y-intercept because they are parallel to the y-axis.

The slope of vertical lines is undefined.

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Answer:

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Step-by-step explanation:

Hi there!

Slope intercept form: y=mx+b where m is the slope of the line and b is the y-intercept (the value of y when the line crosses the y-axis)

<u>1) Find the slope (m)</u>

m=\frac{y_2-y_1}{x_2-x_1} where the two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (2,8),and (8,2)

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Therefore, the slope of the line is -1. Plug this into  y=mx+b:

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Plug in a given point and solve for b

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Therefore, the y-intercept is 10. Plug this back into y=-x+b:

y=-x+10

I hope this helps!

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