A function has the function rule y = -7 x - 2. If the input is -4, what is the output? 26 -30 -26 14
2 answers:
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So,
Let's manipulate this into the y=mx + b form.
Add 4x to both sides
-6y = 4x + 24
Divide both sides by -6
Just use the slope to find the points you need.
The y-intercept is (0,-4).
The slope is
. Finding the next point:
(-6,0)
You could have also used the <em>slope intercept method.</em>
-4(0) - 6y = 24
-6y = 24
Divide both sides by -6
y = -4
(0,-4)
-4x - 6(0) = 24
-4x = 24
Divide both sides by -4
x = -6
(-6,0)
Let's manipulate this into the y=mx + b form.
Add 4x to both sides
-6y = 4x + 24
Divide both sides by -6
Just use the slope to find the points you need.
The y-intercept is (0,-4).
The slope is
(-6,0)
You could have also used the <em>slope intercept method.</em>
-4(0) - 6y = 24
-6y = 24
Divide both sides by -6
y = -4
(0,-4)
-4x - 6(0) = 24
-4x = 24
Divide both sides by -4
x = -6
(-6,0)
