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3 years ago

I need help!! Please explain so I can learn

Mathematics

2 answers:

saveliy_v [14]3 years ago

8 0

What is the question asking?

kompoz [17]3 years ago

8 0

The equation you need is y=mx+b (slope-intercept form). Since the y-intercept, b, is 0 (x=0 when y=0) the remaining part is y=mx. M is your slope/rate of change. It can be expressed as rise over run (y over x) of one ordered pair- so, -3/1 -> -3. Your equation is y= -3x

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Calculate the axis of symmetry in the equation Y = (x+1) (x-4)

algol [13]

Answer:

Every parabola has a turning point called the axis of symmetry,so for this question you just have to find the turning points

x turning point= -b/2a,and the y turning point is gotten by replacing the value of x in the equation

y=(x+1)(x-4)

=x^2-3x-4

a is 1,b is -3 and c is -4

x= -(-3)/2(1)

=1.5

and y=x^2-3x-4

=1.5^2-3(1.5)-4

= -6.25

therefore the axis of symmetry is (1.5,-6.25)

I hope this helps

6 0

2 years ago

Pls answer this question

Pavlova-9 [17]

Answer:

Question 37:

B) 21

Step-by-step explanation:

How I found the radius:

radius= 132/ 2 x π

r=132 / 6.2831853071796

r=21.0084525

Divide 132 by 6.2831853071796

π = 3.1415926535898

Note: Hope this Helps!

-kiniwih426

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aivan3 [116]

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Jlenok [28]

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