AnswersQ1 Mathematics 8Writing Linear Equations Given Two Points

Writing Linear Equations Given Two Points Answers

14 verified answers
2
Free Preview

Question text not available

Answer not available
3

Question text not available

Answer not available
4

Question text not available

Answer not available
11

y = –3x + 5y = 3x – 5 [image 1] [image 2]

Question illustration
A
y = –3x + 5
Option A
B
y = 3x – 5
Option B
C
Option
Option C
D
Option
Option D
12

y = x + 67 = –1(–1) + by – 4 = –1 (x – 2)y – 7 = –1 (x – (–1))y – 2 = x – 4y = –x + 6

A
y = x + 6
B
7 = –1(–1) + b
C
y – 4 = –1 (x – 2)
D
y – 7 = –1 (x – (–1))
E
y – 2 = x – 4
F
y = –x + 6
13

In which step did Helena make an error?

A
In step 1, she substituted the x values for y and the y values for x.
B
In step 2, she didn’t use an x and y from the same coordinate pair.
C
In step 3, she solved for the wrong variable.
D
Helena did not make an error.
15

y = -15/11✔ 13x

A
-1
B
5/11
C
✔ 1
D
3
17

+ -23✔ -3717

A
-23
B
✔ -3
C
7
D
17
29

Question text not available

Answers:
.:no slope
.:x = -5
.:a slope of 0
.:y = -5
30

The equation of a line given two points needs to be found. Samuel claims that slope-intercept form will generate the equation and Helena claims that point-slope form will find the equation. Who is correct? Explain your reason by describing both forms.

Answer:

Both are correct. Using either form will result in the same equation. The slope-intercept form uses slope and a point to find the y-intercept. Point-slope form uses the slope and a point to solve for y to generate the equation.

31

Which of the following did you include in your response? Select all that apply.

A
Both Samuel and Helena are correct.
B
Both forms result in the same equation.
C
Slope-intercept uses slope and a point to find the y-intercept.
D
Point-slope uses slope and a point to solve for y to form the equation.

Did you find these answers helpful?