The y-intercept of the line whose equation is x - y = 7 is a.) 7 b.) 1 c.) -7

C.) -7 is the right answer.

Step-by-step explanation:

Given is an equation of a line

Write in slope intercept form as

This is of the form

y intercept = b=-7

Hence option C is the right answer.

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: