Question

5 quick algebra 1 questions for 50 points!


Only answer if you know the answer, shout-out to subtomex0, tysm for the help!

Answer 1

Q 3 - c -

$x {}^{2} - 8x - 9 = 0 \\ x + y = 8 \\ xy = - 9$

Two numbers who sum up to 8 and multiply to -9 are: 9 and -1

Q 4 - d -

$g(x) = x {}^{2} - 7x + 12 \\ g(6) = 36 - 42 + 12 = 6 \\ g( - 7) = 49 + 49 + 12 = 110 \\ g( - 3) = 9 + 21 + 12 = 42 \\ g(4) = 16 - 28 + 12 = 0$

x=4 is a root

These problems can be approached in many ways: completing the square/factoring/using the quadratic formula...

Q 1 - c -

h(x)= -2x+10

h(0)=10 ( 0 , 10 )

h(x)=0

x=5 ( 5 , 0 )

Q 5 - True -

f(x) = 2x²+3x-2

f(x)=0

2x²+3x+2=0

x=-2 x=1/2

Q 4 - 3 is the zero -

b

Answer 2

Answer:

Question 1:The correct answer is C. -1 and 9

Question 2: The correct answer is D.4

Question 3: The correct answer is C. The x-intercept of (5,0) and y-intercept of (0,10)

Question 4: The correct answer is B. True

Question 5: The correct answer is b.