Answer:
y = -x +4
Step-by-step explanation:
The y-intercept of the line is at +4, so the only viable choice is the last choice.
___
Each of the equations is shown in slope-intercept form:
y = mx + b
where b is the y-intercept, the y-value when x=0. The graph shows that as point (0, 4). So, the equation you're looking for is ...
y = (some x-term) +4
If you want to spend more brain power on the problem, you can compute the slope of the line as ...
m = ∆y/∆x = (1-4)/(3-0) = -3/3 = -1
Now, you know for sure the equation of the line is ...
y = -x +4
The equation is y=-5x + 20, x being the hours that go by after 5pm.
Answer:
Move all terms that don't have "y
" in it to the right side and solve.
y
=−
17
/5
+
4
x
/5
Step-by-step explanation:
<span><span>1.
</span>60 is 10
times as much as is what value?</span>
<span><span>2.
</span>60 is 1/10
of what value?</span>
To interpret these given
problems we can first analyse these given word problems to a mathematical expression.
Hence the given becomes then;
Let N be the unknown value.
<span><span>
1.
</span>10 x N = 60</span>
<span><span>2.
</span>N / 10 = 60</span>
To solve these equations we
just have to find the unknown or N.
<span><span>
1.
</span>10N = 60</span>
<span><span>a.
</span>N = 60/10</span>
<span><span>b.
</span>N = 6</span>
<span><span>
c.
</span>10 x 6 = 60</span>
<span><span>2.
</span>N / 10 = 60</span>
<span><span>
a.
</span>N = 60 x 10</span>
<span><span>b.
</span>N = 600</span>
<span><span>c.
</span>600 / 10 =
60</span>
