If a line with a slope of 4 crosses the y-axis at (0, 1), what is the equation of the line? y − 4x = 1 y + 4x = 1 x − 4y = 1 x +
1 answer:
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A graph shows the solutions to be
.. (1/3, -4 1/3)
.. (3, 1)
.. (1/3, -4 1/3)
.. (3, 1)
Answer:
see explanation
Step-by-step explanation:
73.
18 = 3x (divide both sides by 3 )
6 = x ( multiply both sides by
)
6 = 3x [
×
= 3 ]
divide both sides by 3
x = 2
74.
24 = 2x ( divide both sides by 2 )
12 = x ( multiply both sides by
)
12 = 2x ( divide both sides by 2 )
x = 6
75.
9 × x = 18
( divide both sides by 9
)
x = 2
76.
2 = x × ( multiply both sides by
)
2 = 4x ( divide both sides by 4 )
x =
Answer:
A. y = x + 10
Step-by-step explanation:
Given;
- The equation y = -7x - 5
- and another equation have a solution of (-2, 9)
If we equate the value of y in the first equation and the value of y in the second equation, then the solution of x should be -2 . Let's test this with equation A:
-7x - 5 = x + 10
-7x - x = 10 + 5
-x = 15
x = (15 × -2) ÷ 15 = -2
*<em>This proves that equation A has the same value of x as our first equation!</em>
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Let's test if equation A has a solution; y = 9:
y = (-2) + 10 = 9
*<em>This proves that equation A has the same value of y as our first equation!</em>
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So the second equation is,
A. y = x + 10
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