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For questions 1-2, find the x- and y- intercept of the line.
1. -10x+5y=40
a. x-intercept is 5; y-intercept is -10.
b. x-intercept is 8; y-intercept is -4.
c. x-intercept is -10; y-intercept is 5.
d. x-intercept is -4; y-intercept is 8. --> Answer

2. 5x+4y=80
a. x-intercept is 4; y-intercept is 5.
b. x-intercept is 20; y-intercept is 16.
c. x-intercept is 5; y-intercept is 4.
d. x-intercept is 16; y-intercept is 20. --> Answer


3. Write y=1/6x+4 in standard form using integers.
a. -x-6y=24
b. -x+6y=24 --> Answer
c. -x+6y=4
d. 6x-y=24


The grocery store sells kumquats for $4.75 a pound and Asian pears for $2.25 a pound. Write an equation in standard form for the weights of kumquats k and Asian pears p that a customer could buy with $22.
a. 4.75k+2.25p=22 --> Answer
b. 4.75k=2.25p+22
c. 4.75+2.25=k
d. 4.75p+2.25k=22

x = -2
Answer is D

Respuesta :

wegnerkolmp2741o

Answer:

1. d. x-intercept is -4; y-intercept is 8.

2.d. x-intercept is 16; y-intercept is 20

3. b. -x+6y=24

4.  a. 4.75k+2.25p=22

Step-by-step explanation:

1. -10x+5y=40

to find the y intercept   let x =0

5y = 40

divide by 5

y = 40/5  = 8

to find the x intercept   let y =0

-10x = 40

divide by -10

x = 40/-10

x=-4


2. 5x+4y=80

to find the y intercept   let x =0

4y = 80

divide by 4

y = 80/4  = 20

to find the x intercept   let y =0

5x = 80

divide by 5

x = 80/5  

x=16


3. Write y=1/6x+4 in standard form using integers.

Ax+by =c

multiply each side by 6

6y = 6* (1/6 x + 4)

6y = x+24

subtract x from each side

-x+6y = x-x+24

-x +6y = 24


4. lbs of kumquats * price/per + lbs of pears * price/lb =22

 k * 4.75 + p * 2.25 =22

4.75k + 2.75p = 22



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