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2 years ago

Write equation in slope intercept form given the rate of change is 4 and the y-intercept is -1.

Mathematics

2 answers:

stiv31 [10]2 years ago

7 0

Answer:

y = 4x - 1

Step-by-step explanation:

Given:

Rate of change = 4
y-intercept = -1

Slope-intercept form:

y = mx + b, where m- rate of change or slope, b- y-intercept

So the equation is:

y = 4x - 1

wolverine [178]2 years ago

6 0

Answer:

y=4x-1 i think

Step-by-step explanation:

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2 years ago

Which is the value of this expression when a=5 and k=-2

Zinaida [17]

Answer:

Option C is correct.

Step-by-step explanation:

We are given the expression:

$(\frac{3^2a^{-2}}{3a^{-1}})^k$

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Putting the values and solving

$=(\frac{3^2*5^{-2}}{3*5^{-1}})^-2\\=(\frac{3^{2-1}}{5^{-1+2}})^-2\\=(\frac{3^{1}}{5^{1}})^-2\\\\=(\frac{3}{5})^-2\\if \,\,a^{-1} \,\,then\,\, 1/a\\=\frac{(3)^{-2}}{(5)^{-2}}\\ Can\,\,be\,\,written\,\,as\\\\=\frac{(5)^{2}}{(3)^{2}} \\=\frac{25}{9}$

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