Answer:
(x, y) = (-2, 7), (0, -1), (3, -13), (-1, 3)
Step-by-step explanation:
To fill in the y-values, you need to put the x-value in the equation and evaluate.
<u>for x=0</u>
y = -4(0) -1 = -1
<u>for x=-1</u>
y = -4(-1) -1 = 4 -1 = 3
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To fill in the x-values, we can solve for x and then do as we did above.
y = -4x -1
y +1 = -4x . . . . add 1
-(y +1)/4 = x . . . divide by -4
<u>for y=7</u>
x = -(7 +1)/4 = -2
<u>for y=-13</u>
x = -(-13+1)/4 = -(-12/4) = 3
__
Then the table is ...
Answer:
Zelie should have divided both numbers by 14 to find the scale (2)
Step-by-step explanation:
F(x)= √3x + 1
a=8
8 √3 + 1 <—Exact form
14.85649646 <—In decimal form
£3.99 divided by 8 is £0.49875
Which, changed into pence and rounded up, is 50p.
£2.79 divided by 6 is £0.465
Which, changed into pence and rounded up is 47p.
50p is bigger than 47p
50 subtract 47 is 3p
The second one has the better value for money as it costs 3p less per battery.
Answer:
(x -1)(x -2)
Step-by-step explanation:
You want factors of 2 that sum to -3. The positive sign on +2 tells you they both need to have the same sign. The only two negative integer factors of 2 do that.
2 = (-1)(-2) . . . . (-1) + (-2) = -3
Hence these are the numbers (-1, -2) that go in the binomial factors.
