# Chapter 2 Problems

## 21 terms

### {−2.5,−1,0}

What is the domain of {(−2.5,1),(−1,−1),(0,1),(−1,1)}

### {−1,1}

What is the range of {(−2.5,1),(−1,−1),(0,1),(−1,1)}

### No

Is {(−2.5,1),(−1,−1),(0,1),(−1,1)} a function

### all reals

What is the domain of y=x²

### y≥0

What is the range of y=x²

### Yes

Is y=x² a function

### No, because there is division by a variable

Is g(x)=10+2/x² linear? Why or why not?

Is x+y=5 linear?

### 25x+2y=9

Put 5/6x+1/15y=3/10 in standard form

### x=6

Put 0.5x=3 in standard form

### 3 1/3

X-intercept of 3x−4y−10=0 is ______

### −2 1/2

Y-intercept of 3x−4y−10=0 is ______

### 8

What is the slope of the line that passes through (2.5,3), (1,−9)

### r=1

Find r if a line passes through (6,r), and (9,2) and has a slope of 1/3

### 5

What is the slope of the line that is parallel to the line y=5x+1/3

### −7

What is the slope of the line that is perpendicular to the line y=1/7x+6

### y=−1/4x+3

Write 1/2x+2y=6 in slope intercept form

### slope

M stands for _____ in slope intercept form

### y-intercept

B stands for _____ in slope intercept form

### When you have a point and a slope

When would you use point slope form

### y−8=1/2(x−4)

A line that passes through (4,8) and has a slope of 1/2 in point slope form