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ivann1987 [24]
3 years ago
5

Select THREE equations whose graphs are straight lines

Mathematics
1 answer:
NARA [144]3 years ago
3 0

Answer:

A, C and D

Step-by-step explanation:

A:  y = 7 is a straight, horizontal line

B: is a parabola.  Discard

C:  (cannot read denominator)  This is a straight line thru the origin.

D:  This is a straight line.

E:  This is a parabola, due to to the x^2 term.  Discard

F:  This is a circle.  Discard

Straight lines here are A, C and D

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Answer:

y= -1/2 x + 1

Step-by-step explanation:

The line passes through point (0, 1) and is perpendicular to line with equation :

y=2x

Perpendicular lines are those that give -1 when the product of their slopes is calculated.

This means m₁ *m₂= -1

In this case, m₁=2, finding m₂ as;

m₁ * m₂ = -1

2  * m₂ = -1

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Using point  (0, 1),m₂ = -1/2, and imaginary line (x, y) then the equation of the line in slope-intercept form y= mx + b will be;

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The equation will be ;

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2 years ago
For this open-ended question, write your own unique word problem that could be represented by the equation
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i love these types of problems! i'm going to use my name, cherry, if that's ok.

cherry had 10 buttons in her collection. cherry made a deal with a friend that allowed her to receive 5 new buttons per week. after a certain number of weeks, cherry had acquired a total of 50 buttons! how many weeks had cherry's friend given her buttons?

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