Ex 14D - 14H G8 2425

Which of these lines has a negative gradient?

• The orange one
• The red one
• The blue one
• The green one

What is the y-intercept of this line?

• 2
• 3
• -3y
• -3

What gradient is represented here

• negative

• zero

• undefined

• positive

The gradient of horizontal line is .........

• Always zero
• undefined
• Always positive 
• Always negative

In y = mx + c, what does the c represent?

• the amount of cents

• the constant c, represents the x-intercept

• the constant c, represents the y-intercept

• the gradient of the line

In y = mx + c, what does m represent?

• the amount of money

• the value of x

• the mountain

• the steepness of a line (gradient)

Write in y=mx+c, equation of a straight line having gradient = 4 and passing through (1, 5)

Two lines are parallel if:

• The y – intercepts are the same

• The x – intercepts are the same

• The gradients are different

• The gradients are the same

What is the equation of the line shown?

• y = x - 3

• y = 3x

• y = -3x

• y = x + 3

Does the point ( 2, 4) lie on the graph with equation y = 2x + 1

• Yes

• No