Question

60 points for all the three questions, just please help me

Answer 1

1. The answer is D , neither

Just insert 1&2 in the equation and then get -7 & -9 , which are wrong !

_____________

2. x-intercept : (-13/6 , 0)

y-intercept : (0,13)

_____________

Y=3

Just insert -1 as X in the equation & get the Y .

Explanation:

Hope that was helpful .

Good luck .

Answer 2

• D. Neither
• x- intercept: (-13/6, 0), y- intercept: (0, 13)
• (-1, 3)

Explanation:

#1

• y = -2x - 5

Substitute pairs of solutions and verify

(1, 7)

• 7 = -2*1 - 5
• 7 = -7
• Wrong

(2, -7)

• -7 = -2*2 - 5
• -7 = -11
• Wrong

Correct choice is D. Neither

#2

• y = 6x + 13

x- intercept: y = 0

• 6x + 13 = 0
• 6x = -13
• x = -13/6
• (-13/6, 0)

y- intercept: x = 0

• y = 6*0 + 13
• y = 13
• (0, 13)

#3

• y - 3 = 2(x + 1)

x = -1 ⇒ find y:

• y - 3 = 2(-1 + 1)
• y = 3
• (-1, 3)