Linear Functions (Readiness Standards)

A savings account balance can be modeled by the graph of the linear function shown on the grid. What is the rate of change of the balance with respect to the number of deposits?

• $100 per deposit

• $50 per deposit

• $0.50 per deposit

• $2 per deposit

Answer explanation

• (2,27)

• (-2,3)

• (2,0)

• (-3,-3)

Answer explanation

SOLUTION:

CROSS

MEET

INTERSECT

SAME

EQUAL

TYPE: NSOLVE( ,y)

TAB

TYPE: NSOLVE( ,y)

MENU 6 4

The table shows the linear relationship between the balance of a student’s savings account and the number of weeks he has been saving. Based on the table, what was the rate of change of the balance of the student’s savings account in dollars and cents per week?

Answer explanation

RATE OF CHANGE

RISE/RUN

SLOPE

• $1.50 per mile

• $3.75 per mile

• $4.25 per mile

• $5.25 per mile

• x = 8.5

• x = 2

• x = 3

• x = 4

Answer explanation

NSOLVE

MENU 3 1

*VARIABLE AND = SIGN!*

• w = 5/2

• w = 8

• w = 28/9

• w = 5

Answer explanation

NSOLVE

MENU 3 1

*VARIABLE AND = SIGN!*

The graph of linear function g is shown on the grid. What is the zero of g?

• -8

• -6

• -4

• -2

Answer explanation

RED: X-INTERCEPT

BLUE: Y-INTERCEPT

The graph of a linear function is shown on the grid. What is the rate of change of y with respect to x for this function?

• -0.8

• -1.0

• -0.5

• -0.2

Answer explanation

• 6

• 2

• 30

• No solution

Answer explanation

NSOLVE

MENU 3 1

*VARIABLE AND = SIGN!*

The graph of a function is shown on the grid. Which ordered pair best represents the location of the y-intercept?

• (1/3, 0)

• (0, -2)

• (0, 1/3)

• (-2, 0)

Answer explanation

WHERE IT CROSSES THE Y-AXIS