1. determine which order pair is a solution of y = -5x + 10

A. (-15,5) ****
B. (2,0)
C. ( -1 , -5 )
D. (3, 25 )

2.on which of the following lines does the point ( 7,1 ) lie?

A. y-5x = 4
B. y=x -10
C. y = -4x +3 ***
D. y + -x +8

3.find the slope of the line through ( -9 , -10 ) and ( -2,-5)

A. - 5/7
B. 7/5
C. 5/7 **
D. - 7/5

4. the equation t = 0.07c represent the tax , t , based on the cost , c , of an item . which part of the equation represent the constant of proportionality?

A. t **
B. 0.07
C. c
D. 7

1.B

2.D
3.A
4.B

What about the quiz

2. is D n 4. is b , wht is 3 n 1?

4 is 0.07

1. In order to determine which ordered pair is a solution of the equation y = -5x + 10, you need to substitute the x and y values of each ordered pair into the equation and see if the equation holds true.

Let's go through each ordered pair:

A. (-15,5):
Substituting the values into the equation, we get: 5 = -5(-15) + 10
Simplifying, we get: 5 = 75 + 10, which is not true. Therefore, this is not a solution.

B. (2,0):
Substituting the values into the equation, we get: 0 = -5(2) + 10
Simplifying, we get: 0 = -10 + 10, which is true. Therefore, this is a solution.

C. (-1,-5):
Substituting the values into the equation, we get: -5 = -5(-1) + 10
Simplifying, we get: -5 = 5 + 10, which is not true. Therefore, this is not a solution.

D. (3,25):
Substituting the values into the equation, we get: 25 = -5(3) + 10
Simplifying, we get: 25 = -15 + 10, which is not true. Therefore, this is not a solution.

Based on this analysis, the only ordered pair that is a solution is B. (2,0).

2. To determine on which line the point (7,1) lies, you need to substitute the x and y values of the point into the equation of each line and see if the equation holds true.

Let's go through each line:

A. y - 5x = 4:
Substituting the values into the equation, we get: 1 - 5(7) = 4
Simplifying, we get: 1 - 35 = 4, which is not true. Therefore, the point does not lie on this line.

B. y = x - 10:
Substituting the values into the equation, we get: 1 = 7 - 10
Simplifying, we get: 1 = -3, which is not true. Therefore, the point does not lie on this line.

C. y = -4x + 3:
Substituting the values into the equation, we get: 1 = -4(7) + 3
Simplifying, we get: 1 = -28 + 3, which is not true. Therefore, the point does not lie on this line.

D. y - x + 8:
This option seems to have a typo, as it should be an equation rather than an expression. Without a full equation, we cannot determine if the point lies on this line.

Based on this analysis, none of the options have the point (7,1) lying on them.

3. To find the slope of the line passing through the points (-9,-10) and (-2,-5), you can use the slope formula:

slope = (y2 - y1) / (x2 - x1)

Let's substitute the values into the formula:

slope = (-5 - (-10)) / (-2 - (-9))
= (-5 + 10) / (-2 + 9)
= 5 / 7

Therefore, the slope of the line passing through the points (-9,-10) and (-2,-5) is 5/7.

4. In the equation t = 0.07c, the constant of proportionality is represented by the coefficient of c, which is 0.07. This is because the constant of proportionality represents the ratio between the dependent variable (t) and the independent variable (c). In this case, for every 1 unit increase in c, t will increase by 0.07 units. Therefore, the constant of proportionality is 0.07.