Question

Write the equation 4x - 2y = 12 in slope-intercept form. *

2 points
y = 2x + 6
y = -2x + 6
y = -2x - 6
y = 2x - 6
What value of x will make the ordered pair (____, 4) a solution to the equation 2x + y = 13? *
1 point
x = 2
x = 9
x = 7
x = 9/2
The ordered pair (-1, -5) is a solution to the equation y = 4x - 1. *
1 point
True
False
What value of y will make the ordered pair (-2, ___) a solution to the equation x + y = 8? *
1 point
y = 10
y= 9
y = 5
y = 7
Identify the values of A, B, and C in the linear equation 3x - 4y = 5. *
1 point
A = 3, B = -4, C = 5
A = 3, B = -4 , C = -5
A = -3, B = 4, C = 5
A = 3, B = 4, C = 5
Write the equation 3y = -4 - 5x in standard form. *
1 point
5x + 3y = -4
-5x + 3y = 4
5x - 3y = 4
-5x + 3y = -4
An ordered pair is a solution of an equation if the numbers in the ordered pair make the equation true. *
1 point
False
True
Which of the following linear equations is in standard form? *
1 point
3y + 5 = 7x
y = 4x -7
3x + 4y = 5
2x = y + 4
Which of the following linear equations is in slope-intercept form? *
1 point
y = 4x -7
3x + 4y = 5
2x = y + 4
3y + 5 = 7x
The ordered pair (0 , 3) is a solution to the equation 2x + y = 10. *
1 point
True
False
Which of the following ordered pairs is a solution to the equation 4x + y = 12? *
2 points
(4, 3)
(1, 8)
(2, 5)
(3, 2)
Which of the following equations is a linear equation in two variables? *
1 point
y = x² - 12
x² - x - 12 = 5
x + 2y = 14
x + xy = 21
The equation y = x² + 2 is a linear equation in two variables. *
1 point
True
False

Answer 1

see below

Explanation:

4x - 2y = 12 ⇒ 2y = 4x - 12 ⇒ y = 2x - 6

2x + y = 13 ⇒ 2x + 4 = 13 ⇒ 2x = 9 ⇒ x = 9/2

y = 4x - 1 ⇒ y = 4(-1) - 1 = -5 ⇒ true

x + y = 8 ⇒ -2 + y = 8 ⇒ y = 10

3x - 4y = 5 ⇒ 3x - 4y - 5 = 0 ⇒ a = 3 b = -4 c = -5

3y = -4 - 5x ⇒ 5x + 3y = -4

True

3x + 4y = 5

y = 4x - 7

2x + y = 10 ⇒ 2(0) + 3 = 5 ≠ 10 ⇒ False

(1, 8) ⇒ 4(1) + 8 = 12

x + 2y = 14

No, y= x² + 2 is a quadratic equation