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find the coordinates of the points:

1) y=−1.5x+3

x − intercept is
y − intercept is

2) y=1.5x−6

x − intercept is
y − intercept is

3) y=0.8x−0.6

x − intercept is
y − intercept is

4) y=2/3x−5

x − intercept is
y − intercept is

see below

Step-by-step explanation:

To find the x intercept, set y = 0 and solve for x

To find the y intercept, set x = 0 and solve for y

1. y=−1.5x+3

x intercept

0 =−1.5x+3

Subtract 3 from each side

-3 = -1.5x

Divide by -1.5

-3/-1.5 = x

2=x               (2,0)

y intercept

y = 0+3

y =3                   (0,3)

2.  y=1.5x−6

x intercept

0 =1.5x+6

Subtract 6 from each side

-6 = 1.5x

Divide by 1.5

-6/1.5 = x

-4=x               (-4,0)

y intercept

y = 0+6

y =6                   (0,6)

3. y= .8x -.6

x intercept

0 =.8x-.6

Add .6 to each side

.6 = .8x

Divide by .8

.6/.8 = x

.75=x               (.75,0)

y intercept

y = 0-.6

y =-.6                   (0,-.6)

3. y= 2/3x -5

x intercept

0 =2/3x-5

Add 5 to each side

5 = 2/3x

Multiply by 3/2

3/2 *5 = 2/3 *3/2x

15/2 =x

7.5=x               (7.5,0)

y intercept

y = 0-5

y =-5                   (0,-5)

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.